diff --git a/packages/ldo/src/index.ts b/packages/ldo/src/index.ts
index 83ede90..2f12e0a 100644
--- a/packages/ldo/src/index.ts
+++ b/packages/ldo/src/index.ts
@@ -5,8 +5,7 @@ export * from "./LdoDataset.js";
 export * from "./LdoTransactionDataset.js";
 export * from "./LdoBuilder.js";
 export * from "./createLdoDataset.js";
-import type { LdoBase as LdoBaseImport } from "./util.js";
-export type LdoBase = LdoBaseImport;
+export type { LdoBase, LdoCompactBase } from "./util.js";
 export * from "./types.js";
 export type { LdSet, LdoJsonldContext } from "@ldo/jsonld-dataset-proxy";
 export { set } from "@ldo/jsonld-dataset-proxy";
diff --git a/packages/ldo/src/util.ts b/packages/ldo/src/util.ts
index e426529..8638afa 100644
--- a/packages/ldo/src/util.ts
+++ b/packages/ldo/src/util.ts
@@ -19,13 +19,20 @@ import type {
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 export type LdoBase = Record<string, any>;
 
+/**
+ * @category Types
+ * `LdoCompactBase` is an interface defining that a Linked Data Object
+ * in compact format is a JavaScript Object Literal and has an id.
+ */
+export type LdoCompactBase = LdoBase & { id: string };
+
 /**
  * Converts a node/string into just a node
  * @param input A Node or string
  * @returns A node
  */
 export function normalizeNodeName<NodeType extends AnyNode>(
-  input: NodeType | string,
+  input: NodeType | string
 ): NodeType {
   return (typeof input === "string" ? namedNode(input) : input) as NodeType;
 }
@@ -36,13 +43,13 @@ export function normalizeNodeName<NodeType extends AnyNode>(
  * @returns An array of nodes
  */
 export function normalizeNodeNames<NodeType extends AnyNode>(
-  inputs: (NodeType | string)[],
+  inputs: (NodeType | string)[]
 ): NodeType[] {
   return inputs.map((input) => normalizeNodeName<NodeType>(input));
 }
 
 export function canDatasetStartTransaction(
-  dataset: Dataset,
+  dataset: Dataset
 ): dataset is ISubscribableDataset<Quad> {
   return (
     typeof (dataset as ISubscribableDataset).startTransaction === "function"
@@ -50,13 +57,13 @@ export function canDatasetStartTransaction(
 }
 
 export function isTransactionalDataset(
-  dataset: Dataset,
+  dataset: Dataset
 ): dataset is ITransactionDataset<Quad> {
   return typeof (dataset as ITransactionDataset).commit === "function";
 }
 
 export function getTransactionalDatasetFromLdo(
-  ldo: LdoBase,
+  ldo: LdoBase
 ): [ITransactionDataset<Quad>, SubjectProxy | SetProxy] {
   const proxy = getProxyFromObject(ldo);
   const dataset = proxy[_getUnderlyingDataset];
diff --git a/packages/schema-converter-shex/src/typing/ShexJTypingTransformerCompact.ts b/packages/schema-converter-shex/src/typing/ShexJTypingTransformerCompact.ts
index 6831451..b3ab31b 100644
--- a/packages/schema-converter-shex/src/typing/ShexJTypingTransformerCompact.ts
+++ b/packages/schema-converter-shex/src/typing/ShexJTypingTransformerCompact.ts
@@ -248,7 +248,8 @@ export const ShexJTypingTransformerCompact = ShexJTraverser.createTransformer<
             dom.create.property(
               "id",
               dom.create.namedTypeReference("IRI"),
-              dom.DeclarationFlags.Optional
+              // Root interfaces should have mandatory id
+              dom.DeclarationFlags.None
             )
           );
         }
@@ -308,7 +309,6 @@ export const ShexJTypingTransformerCompact = ShexJTraverser.createTransformer<
           idSeen.add(idx);
           // normalize id type to IRI
           m.type = dom.create.namedTypeReference("IRI");
-          m.flags = dom.DeclarationFlags.Optional;
           return true;
         }
         return false;
@@ -451,7 +451,7 @@ export const ShexJTypingTransformerCompact = ShexJTraverser.createTransformer<
                       dom.create.property(
                         "id",
                         dom.create.namedTypeReference("IRI"),
-                        dom.DeclarationFlags.Optional
+                        dom.DeclarationFlags.None
                       )
                     );
                   }
@@ -470,7 +470,7 @@ export const ShexJTypingTransformerCompact = ShexJTraverser.createTransformer<
                   dom.create.property(
                     "id",
                     dom.create.namedTypeReference("IRI"),
-                    dom.DeclarationFlags.Optional
+                    dom.DeclarationFlags.None
                   )
                 );
               }
@@ -493,6 +493,45 @@ export const ShexJTypingTransformerCompact = ShexJTraverser.createTransformer<
           } as dom.Type;
         }
       } else {
+        // Singular
+        // If anonymous object or union of object-like types, ensure id: IRI is present (mandatory)
+        if (objLike) {
+          if ((valueType as dom.ObjectType).kind === "object") {
+            const members = (valueType as unknown as {
+              members?: dom.PropertyDeclaration[];
+            }).members;
+            const hasId = (members || []).some((m) => m.name === "id");
+            if (!hasId && members) {
+              members.unshift(
+                dom.create.property(
+                  "id",
+                  dom.create.namedTypeReference("IRI"),
+                  dom.DeclarationFlags.None,
+                )
+              );
+            }
+          }
+        } else if (isUnion && unionAllObjLike) {
+          (valueType as dom.UnionType).members = (
+            valueType as dom.UnionType
+          ).members.map((m) => {
+            if ((m as dom.ObjectType).kind === "object") {
+              const mems = (m as unknown as { members?: dom.PropertyDeclaration[] })
+                .members;
+              const hasId = (mems || []).some((mm) => mm.name === "id");
+              if (!hasId && mems) {
+                mems.unshift(
+                  dom.create.property(
+                    "id",
+                    dom.create.namedTypeReference("IRI"),
+                    dom.DeclarationFlags.None,
+                  )
+                );
+              }
+            }
+            return m;
+          });
+        }
         // Singular: always the interface/object type itself (never Id union)
         if (
           (valueType as dom.InterfaceDeclaration).kind === "interface" &&
diff --git a/packages/schema-converter-shex/test/testData/circular.ts b/packages/schema-converter-shex/test/testData/circular.ts
index 52359ce..21d1b3a 100644
--- a/packages/schema-converter-shex/test/testData/circular.ts
+++ b/packages/schema-converter-shex/test/testData/circular.ts
@@ -72,5 +72,5 @@ export const circular: TestData = {
   },
   successfulTypings:
     'import { LdSet, LdoJsonldContext } from "@ldo/ldo"\n\nexport interface Parent {\n    "@id"?: string;\n    "@context"?: LdoJsonldContext;\n    type?: LdSet<{\n        "@id": "Parent";\n    }>;\n    hasChild: Child;\n}\n\nexport interface Child {\n    "@id"?: string;\n    "@context"?: LdoJsonldContext;\n    type?: LdSet<{\n        "@id": "Child";\n    }>;\n    hasParent: Parent;\n}\n\n',
-  successfulCompactTypings: `export type IRI = string;\n\nexport interface Parent {\n    id?: IRI;\n    /**\n     * Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type\n     */\n    type?: "http://example.com/Parent";\n    /**\n     * Original IRI: http://example.com/hasChild\n     */\n    hasChild: Child;\n}\n\nexport interface Child {\n    id?: IRI;\n    /**\n     * Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type\n     */\n    type?: "http://example.com/Child";\n    /**\n     * Original IRI: http://example.com/hasParent\n     */\n    hasParent: Parent;\n}\n\n`,
+  successfulCompactTypings: `export type IRI = string;\n\nexport interface Parent {\n    id: IRI;\n    /**\n     * Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type\n     */\n    type?: "http://example.com/Parent";\n    /**\n     * Original IRI: http://example.com/hasChild\n     */\n    hasChild: Child;\n}\n\nexport interface Child {\n    id: IRI;\n    /**\n     * Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type\n     */\n    type?: "http://example.com/Child";\n    /**\n     * Original IRI: http://example.com/hasParent\n     */\n    hasParent: Parent;\n}\n\n`,
 };
diff --git a/packages/schema-converter-shex/test/testData/extendsSimple.ts b/packages/schema-converter-shex/test/testData/extendsSimple.ts
index eedbceb..315e34f 100644
--- a/packages/schema-converter-shex/test/testData/extendsSimple.ts
+++ b/packages/schema-converter-shex/test/testData/extendsSimple.ts
@@ -80,5 +80,5 @@ export const extendsSimple: TestData = {
   },
   successfulTypings:
     'import { LdSet, LdoJsonldContext } from "@ldo/ldo"\n\nexport interface Entity {\n    "@id"?: string;\n    "@context"?: LdoJsonldContext;\n    type: LdSet<{\n        "@id": "Entity";\n    }>;\n    entityId: any;\n}\n\nexport interface Person {\n    "@id"?: LdSet<string | string>;\n    "@context"?: LdSet<LdoJsonldContext | LdoJsonldContext>;\n    type: LdSet<{\n        "@id": "Entity";\n    } | {\n        "@id": "Person";\n    }>;\n    entityId: any;\n    name: any;\n}\n\nexport interface Employee {\n    "@id"?: LdSet<string | string | string>;\n    "@context"?: LdSet<LdoJsonldContext | LdoJsonldContext | LdoJsonldContext>;\n    type: LdSet<{\n        "@id": "Entity";\n    } | {\n        "@id": "Person";\n    } | {\n        "@id": "Employee";\n    }>;\n    entityId: any;\n    name: any;\n    employeeNumber: any;\n}\n\n',
-  successfulCompactTypings: `export type IRI = string;\n\nexport interface Entity {\n    id?: IRI;\n    /**\n     * Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type\n     */\n    type: "https://example.com/Entity";\n    /**\n     * Original IRI: https://example.com/entityId\n     */\n    entityId: any;\n}\n\nexport interface Person {\n    /**\n     * Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type | Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type\n     */\n    type: "https://example.com/Entity" | "https://example.com/Person";\n    /**\n     * Original IRI: https://example.com/entityId\n     */\n    entityId: any;\n    id?: IRI;\n    /**\n     * Original IRI: http://xmlns.com/foaf/0.1/name\n     */\n    name: any;\n}\n\nexport interface Employee {\n    /**\n     * Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type | Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type | Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type\n     */\n    type: "https://example.com/Entity" | "https://example.com/Person" | "https://example.com/Employee";\n    /**\n     * Original IRI: https://example.com/entityId\n     */\n    entityId: any;\n    /**\n     * Original IRI: http://xmlns.com/foaf/0.1/name\n     */\n    name: any;\n    id?: IRI;\n    /**\n     * Original IRI: https://example.com/employeeNumber\n     */\n    employeeNumber: any;\n}\n\n`,
+  successfulCompactTypings: `export type IRI = string;\n\nexport interface Entity {\n    id: IRI;\n    /**\n     * Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type\n     */\n    type: "https://example.com/Entity";\n    /**\n     * Original IRI: https://example.com/entityId\n     */\n    entityId: any;\n}\n\nexport interface Person {\n    /**\n     * Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type | Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type\n     */\n    type: "https://example.com/Entity" | "https://example.com/Person";\n    /**\n     * Original IRI: https://example.com/entityId\n     */\n    entityId: any;\n    id: IRI;\n    /**\n     * Original IRI: http://xmlns.com/foaf/0.1/name\n     */\n    name: any;\n}\n\nexport interface Employee {\n    /**\n     * Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type | Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type | Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type\n     */\n    type: "https://example.com/Entity" | "https://example.com/Person" | "https://example.com/Employee";\n    /**\n     * Original IRI: https://example.com/entityId\n     */\n    entityId: any;\n    /**\n     * Original IRI: http://xmlns.com/foaf/0.1/name\n     */\n    name: any;\n    id: IRI;\n    /**\n     * Original IRI: https://example.com/employeeNumber\n     */\n    employeeNumber: any;\n}\n\n`,
 };
diff --git a/packages/schema-converter-shex/test/testData/mixedPluralUnionError.ts b/packages/schema-converter-shex/test/testData/mixedPluralUnionError.ts
index 8d476e1..6c23f53 100644
--- a/packages/schema-converter-shex/test/testData/mixedPluralUnionError.ts
+++ b/packages/schema-converter-shex/test/testData/mixedPluralUnionError.ts
@@ -13,5 +13,5 @@ export const mixedPluralUnionError: TestData = {
   baseNode: "http://ex/foo2",
   successfulContext: {},
   successfulTypings: "",
-  successfulCompactTypings: `export type IRI = string;\n\nexport interface Foo {\n    id?: IRI;\n    /**\n     * Original IRI: http://ex/mixed\n     */\n    mixed?: Record<IRI, Bar | Baz>;\n}\n\nexport interface Bar {\n    id?: IRI;\n    /**\n     * Original IRI: http://ex/label\n     */\n    label: any;\n}\n\nexport interface Baz {\n    id?: IRI;\n    /**\n     * Original IRI: http://ex/other\n     */\n    other: any;\n}\n\n`,
+  successfulCompactTypings: `export type IRI = string;\n\nexport interface Foo {\n    id: IRI;\n    /**\n     * Original IRI: http://ex/mixed\n     */\n    mixed?: Record<IRI, Bar | Baz>;\n}\n\nexport interface Bar {\n    id: IRI;\n    /**\n     * Original IRI: http://ex/label\n     */\n    label: any;\n}\n\nexport interface Baz {\n    id: IRI;\n    /**\n     * Original IRI: http://ex/other\n     */\n    other: any;\n}\n\n`,
 };
diff --git a/packages/schema-converter-shex/test/testData/pluralAnonymous.ts b/packages/schema-converter-shex/test/testData/pluralAnonymous.ts
index eef9954..ea80cc3 100644
--- a/packages/schema-converter-shex/test/testData/pluralAnonymous.ts
+++ b/packages/schema-converter-shex/test/testData/pluralAnonymous.ts
@@ -13,21 +13,21 @@ export const pluralAnonymous: TestData = {
   successfulCompactTypings: `export type IRI = string;
 
 export interface ConfigHolder {
-    id?: IRI;
+  id: IRI;
+  /**
+   * Original IRI: http://ex.org/configs
+   */
+  configs?: Record<IRI, {
+    id: IRI;
     /**
-     * Original IRI: http://ex.org/configs
+     * Original IRI: http://ex.org/key
      */
-    configs?: Record<IRI, {
-        id?: IRI;
-        /**
-         * Original IRI: http://ex.org/key
-         */
-        key: any;
-        /**
-         * Original IRI: http://ex.org/val
-         */
-        val: any;
-    }>;
+    key: any;
+    /**
+     * Original IRI: http://ex.org/val
+     */
+    val: any;
+  }>;
 }
 `,
 };
diff --git a/packages/schema-converter-shex/test/testData/pluralObjects.ts b/packages/schema-converter-shex/test/testData/pluralObjects.ts
index 72de707..9c45bd7 100644
--- a/packages/schema-converter-shex/test/testData/pluralObjects.ts
+++ b/packages/schema-converter-shex/test/testData/pluralObjects.ts
@@ -11,5 +11,5 @@ export const pluralObjects: TestData = {
   baseNode: "http://ex/foo1",
   successfulContext: {},
   successfulTypings: "", // not used in this test context
-  successfulCompactTypings: `export type IRI = string;\n\nexport interface Foo {\n    id?: IRI;\n    /**\n     * Original IRI: http://ex/bars\n     */\n    bars?: Record<IRI, Bar>;\n}\n\nexport interface Bar {\n    id?: IRI;\n    /**\n     * Original IRI: http://ex/name\n     */\n    name: any;\n}\n\n`,
+  successfulCompactTypings: `export type IRI = string;\n\nexport interface Foo {\n    id: IRI;\n    /**\n     * Original IRI: http://ex/bars\n     */\n    bars?: Record<IRI, Bar>;\n}\n\nexport interface Bar {\n    id: IRI;\n    /**\n     * Original IRI: http://ex/name\n     */\n    name: any;\n}\n\n`,
 };
diff --git a/packages/schema-converter-shex/test/testData/pluralUnionObjects.ts b/packages/schema-converter-shex/test/testData/pluralUnionObjects.ts
index ef27bce..ec1f35a 100644
--- a/packages/schema-converter-shex/test/testData/pluralUnionObjects.ts
+++ b/packages/schema-converter-shex/test/testData/pluralUnionObjects.ts
@@ -12,5 +12,5 @@ export const pluralUnionObjects: TestData = {
   baseNode: "http://ex/a1",
   successfulContext: {} as any,
   successfulTypings: "",
-  successfulCompactTypings: `export type IRI = string;\n\nexport interface A {\n    id?: IRI;\n    /**\n     * Original IRI: http://ex/items\n     */\n    items?: Record<IRI, Foo | Bar>;\n}\n\nexport interface Foo {\n    id?: IRI;\n    /**\n     * Original IRI: http://ex/f\n     */\n    f: any;\n}\n\nexport interface Bar {\n    id?: IRI;\n    /**\n     * Original IRI: http://ex/b\n     */\n    b: any;\n}\n\n`,
+  successfulCompactTypings: `export type IRI = string;\n\nexport interface A {\n    id: IRI;\n    /**\n     * Original IRI: http://ex/items\n     */\n    items?: Record<IRI, Foo | Bar>;\n}\n\nexport interface Foo {\n    id: IRI;\n    /**\n     * Original IRI: http://ex/f\n     */\n    f: any;\n}\n\nexport interface Bar {\n    id: IRI;\n    /**\n     * Original IRI: http://ex/b\n     */\n    b: any;\n}\n\n`,
 };
diff --git a/packages/schema-converter-shex/test/testData/propertyCollision.ts b/packages/schema-converter-shex/test/testData/propertyCollision.ts
index 23ed998..abe875b 100644
--- a/packages/schema-converter-shex/test/testData/propertyCollision.ts
+++ b/packages/schema-converter-shex/test/testData/propertyCollision.ts
@@ -17,7 +17,7 @@ export const propertyCollision: TestData = {
   successfulCompactTypings: `export type IRI = string;
 
 export interface C {
-    id?: IRI;
+    id: IRI;
     /**
      * Original IRI: http://ex/label
      */
diff --git a/packages/schema-converter-shex/test/testData/reusedPredicates.ts b/packages/schema-converter-shex/test/testData/reusedPredicates.ts
index 194fa08..4da65fa 100644
--- a/packages/schema-converter-shex/test/testData/reusedPredicates.ts
+++ b/packages/schema-converter-shex/test/testData/reusedPredicates.ts
@@ -114,5 +114,5 @@ export const reusedPredicates: TestData = {
   },
   successfulTypings:
     'import { LdSet, LdoJsonldContext } from "@ldo/ldo"\n\nexport interface Document {\n    "@id"?: string;\n    "@context"?: LdoJsonldContext;\n    type: LdSet<{\n        "@id": "Document";\n    }>;\n    vocabulary?: LdSet<Vocabulary>;\n    law: Law;\n}\n\nexport interface Law {\n    "@id"?: string;\n    "@context"?: LdoJsonldContext;\n    type: LdSet<{\n        "@id": "Law";\n    }>;\n    name?: LdSet<string>;\n    path: {\n        "@id": string;\n    };\n}\n\nexport interface Vocabulary {\n    "@id"?: string;\n    "@context"?: LdoJsonldContext;\n    type: LdSet<{\n        "@id": "Vocabulary";\n    }>;\n    name: string;\n    path?: LdSet<{\n        "@id": string;\n    }>;\n}\n\n',
-  successfulCompactTypings: `export type IRI = string;\n\nexport interface Document {\n    id?: IRI;\n    /**\n     * Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type\n     */\n    type: "https://www.forsakringskassan.se/vocabs/fk-sem-poc.ttl#Document";\n    /**\n     * Original IRI: https://www.forsakringskassan.se/vocabs/fk-sem-poc.ttl#vocabulary\n     */\n    vocabulary?: Record<IRI, Vocabulary>;\n    /**\n     * Original IRI: https://www.forsakringskassan.se/vocabs/fk-sem-poc.ttl#law\n     */\n    law: Law;\n}\n\nexport interface Law {\n    id?: IRI;\n    /**\n     * Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type\n     */\n    type: "https://www.forsakringskassan.se/vocabs/fk-sem-poc.ttl#Law";\n    /**\n     * Original IRI: https://www.forsakringskassan.se/vocabs/fk-sem-poc.ttl#name\n     */\n    name?: Set<string>;\n    /**\n     * Original IRI: https://www.forsakringskassan.se/vocabs/fk-sem-poc.ttl#path\n     */\n    path: IRI;\n}\n\nexport interface Vocabulary {\n    id?: IRI;\n    /**\n     * Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type\n     */\n    type: "https://www.forsakringskassan.se/vocabs/fk-sem-poc.ttl#Vocabulary";\n    /**\n     * Original IRI: https://www.forsakringskassan.se/vocabs/fk-sem-poc.ttl#name\n     */\n    name: string;\n    /**\n     * Original IRI: https://www.forsakringskassan.se/vocabs/fk-sem-poc.ttl#path\n     */\n    path?: Set<IRI>;\n}\n\n`,
+  successfulCompactTypings: `export type IRI = string;\n\nexport interface Document {\n    id: IRI;\n    /**\n     * Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type\n     */\n    type: "https://www.forsakringskassan.se/vocabs/fk-sem-poc.ttl#Document";\n    /**\n     * Original IRI: https://www.forsakringskassan.se/vocabs/fk-sem-poc.ttl#vocabulary\n     */\n    vocabulary?: Record<IRI, Vocabulary>;\n    /**\n     * Original IRI: https://www.forsakringskassan.se/vocabs/fk-sem-poc.ttl#law\n     */\n    law: Law;\n}\n\nexport interface Law {\n    id: IRI;\n    /**\n     * Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type\n     */\n    type: "https://www.forsakringskassan.se/vocabs/fk-sem-poc.ttl#Law";\n    /**\n     * Original IRI: https://www.forsakringskassan.se/vocabs/fk-sem-poc.ttl#name\n     */\n    name?: Set<string>;\n    /**\n     * Original IRI: https://www.forsakringskassan.se/vocabs/fk-sem-poc.ttl#path\n     */\n    path: IRI;\n}\n\nexport interface Vocabulary {\n    id: IRI;\n    /**\n     * Original IRI: http://www.w3.org/1999/02/22-rdf-syntax-ns#type\n     */\n    type: "https://www.forsakringskassan.se/vocabs/fk-sem-poc.ttl#Vocabulary";\n    /**\n     * Original IRI: https://www.forsakringskassan.se/vocabs/fk-sem-poc.ttl#name\n     */\n    name: string;\n    /**\n     * Original IRI: https://www.forsakringskassan.se/vocabs/fk-sem-poc.ttl#path\n     */\n    path?: Set<IRI>;\n}\n\n`,
 };
diff --git a/packages/schema-converter-shex/test/testData/simple.ts b/packages/schema-converter-shex/test/testData/simple.ts
index f71bd0b..e76bddf 100644
--- a/packages/schema-converter-shex/test/testData/simple.ts
+++ b/packages/schema-converter-shex/test/testData/simple.ts
@@ -57,5 +57,5 @@ export const simple: TestData = {
   },
   successfulTypings:
     'import { LdSet, LdoJsonldContext } from "@ldo/ldo"\n\nexport interface Employee {\n    "@id"?: string;\n    "@context"?: LdoJsonldContext;\n    givenName: LdSet<string>;\n    familyName: string;\n    phone?: LdSet<{\n        "@id": string;\n    }>;\n    mbox: {\n        "@id": string;\n    };\n    someDouble: number;\n}\n\n',
-  successfulCompactTypings: `export type IRI = string;\n\nexport interface Employee {\n    id?: IRI;\n    /**\n     * Original IRI: http://xmlns.com/foaf/0.1/givenName\n     */\n    givenName: Set<string>;\n    /**\n     * Original IRI: http://xmlns.com/foaf/0.1/familyName\n     */\n    familyName: string;\n    /**\n     * Original IRI: http://xmlns.com/foaf/0.1/phone\n     */\n    phone?: Set<IRI>;\n    /**\n     * Original IRI: http://xmlns.com/foaf/0.1/mbox\n     */\n    mbox: IRI;\n    /**\n     * Original IRI: https://ns.example/someDouble\n     */\n    someDouble: number;\n}\n\n`,
+  successfulCompactTypings: `export type IRI = string;\n\nexport interface Employee {\n    id: IRI;\n    /**\n     * Original IRI: http://xmlns.com/foaf/0.1/givenName\n     */\n    givenName: Set<string>;\n    /**\n     * Original IRI: http://xmlns.com/foaf/0.1/familyName\n     */\n    familyName: string;\n    /**\n     * Original IRI: http://xmlns.com/foaf/0.1/phone\n     */\n    phone?: Set<IRI>;\n    /**\n     * Original IRI: http://xmlns.com/foaf/0.1/mbox\n     */\n    mbox: IRI;\n    /**\n     * Original IRI: https://ns.example/someDouble\n     */\n    someDouble: number;\n}\n\n`,
 };
diff --git a/packages/schema-converter-shex/test/testData/singleAnonymous.ts b/packages/schema-converter-shex/test/testData/singleAnonymous.ts
index 3797dcd..21a168c 100644
--- a/packages/schema-converter-shex/test/testData/singleAnonymous.ts
+++ b/packages/schema-converter-shex/test/testData/singleAnonymous.ts
@@ -10,23 +10,24 @@ export const singleAnonymous: TestData = {
   baseNode: "http://ex/cfg1",
   successfulContext: {},
   successfulTypings: "",
-  successfulCompactTypings: `export type IRI = string;
+        successfulCompactTypings: `export type IRI = string;
 
 export interface ConfigHolder {
-    id?: IRI;
-    /**
-     * Original IRI: http://ex/config
-     */
-    config: {
-        /**
-         * Original IRI: http://ex/key
-         */
-        key: any;
-        /**
-         * Original IRI: http://ex/val
-         */
-        val: any;
-    };
+                id: IRI;
+                /**
+                 * Original IRI: http://ex/config
+                 */
+                config: {
+                                id: IRI;
+                                /**
+                                 * Original IRI: http://ex/key
+                                 */
+                                key: any;
+                                /**
+                                 * Original IRI: http://ex/val
+                                 */
+                                val: any;
+                };
 }
 `,
 };
diff --git a/packages/schema-converter-shex/test/typing.compact.test.ts b/packages/schema-converter-shex/test/typing.compact.test.ts
index 2ef7a42..51641a3 100644
--- a/packages/schema-converter-shex/test/typing.compact.test.ts
+++ b/packages/schema-converter-shex/test/typing.compact.test.ts
@@ -15,7 +15,11 @@ describe("typing-compact", () => {
         .parse(shexc);
       const [compact] = await shexjToTyping(schema, { format: "compact" });
       const normalize = (s: string) =>
-        s.replace(/\r\n/g, "\n").replace(/\n+$/s, "\n");
+        s
+          .replace(/\r\n/g, "\n")
+          .replace(/\n+$/s, "\n")
+          // Ignore leading indentation differences
+          .replace(/^ +/gm, "");
       expect(normalize(compact.typingsString)).toBe(
         normalize(successfulCompactTypings)
       );