diff --git a/lib/src/repository.rs b/lib/src/repository.rs
index 11c35fa8..8f445194 100644
--- a/lib/src/repository.rs
+++ b/lib/src/repository.rs
@@ -1,7 +1,6 @@
 use crate::model::*;
-use crate::sparql::{GraphPattern, PreparedQuery, QueryOptions};
+use crate::sparql::{GraphPattern, PreparedQuery};
 use crate::{DatasetSyntax, GraphSyntax, Result};
-use rio_api::iri::Iri;
 use std::io::BufRead;
 
 /// A `Repository` stores a [RDF dataset](https://www.w3.org/TR/rdf11-concepts/#dfn-rdf-dataset)
diff --git a/lib/src/sparql/mod.rs b/lib/src/sparql/mod.rs
index fa8eae91..520b4441 100644
--- a/lib/src/sparql/mod.rs
+++ b/lib/src/sparql/mod.rs
@@ -64,7 +64,7 @@ impl<'a, S: StoreConnection + 'a> SimplePreparedQuery<S> {
             QueryVariants::Select {
                 algebra,
                 dataset: _,
-                base_iri,
+                ..
             } => {
                 let (plan, variables) = PlanBuilder::build(dataset.encoder(), &algebra)?;
                 SimplePreparedQueryAction::Select {
@@ -76,7 +76,7 @@ impl<'a, S: StoreConnection + 'a> SimplePreparedQuery<S> {
             QueryVariants::Ask {
                 algebra,
                 dataset: _,
-                base_iri,
+                ..
             } => {
                 let (plan, _) = PlanBuilder::build(dataset.encoder(), &algebra)?;
                 SimplePreparedQueryAction::Ask {
@@ -88,7 +88,7 @@ impl<'a, S: StoreConnection + 'a> SimplePreparedQuery<S> {
                 construct,
                 algebra,
                 dataset: _,
-                base_iri,
+                ..
             } => {
                 let (plan, variables) = PlanBuilder::build(dataset.encoder(), &algebra)?;
                 SimplePreparedQueryAction::Construct {
@@ -104,7 +104,7 @@ impl<'a, S: StoreConnection + 'a> SimplePreparedQuery<S> {
             QueryVariants::Describe {
                 algebra,
                 dataset: _,
-                base_iri,
+                ..
             } => {
                 let (plan, _) = PlanBuilder::build(dataset.encoder(), &algebra)?;
                 SimplePreparedQueryAction::Describe {
diff --git a/lib/src/store/mod.rs b/lib/src/store/mod.rs
index d27d04e8..f87531ee 100644
--- a/lib/src/store/mod.rs
+++ b/lib/src/store/mod.rs
@@ -14,7 +14,6 @@ use crate::model::*;
 use crate::sparql::{SimplePreparedQuery};
 use crate::store::numeric_encoder::*;
 use crate::{DatasetSyntax, GraphSyntax, RepositoryConnection, Result};
-use rio_api::iri::Iri;
 use rio_api::parser::{QuadsParser, TriplesParser};
 use rio_turtle::{NQuadsParser, NTriplesParser, TriGParser, TurtleParser};
 use rio_xml::RdfXmlParser;