diff --git a/js/build_package.js b/js/build_package.js
index e06f84dc..8db31abb 100644
--- a/js/build_package.js
+++ b/js/build_package.js
@@ -1,15 +1,7 @@
 #! /usr/bin/env node
 
-const fs = require("fs");
+const fs= require("fs");
 
-// We copy file to the new directory
-fs.mkdirSync("pkg");
-for (const file of fs.readdirSync("./pkg-web")) {
-    fs.copyFileSync(`./pkg-web/${file}`, `./pkg/${file}`);
-}
-for (const file of fs.readdirSync("./pkg-node")) {
-    fs.copyFileSync(`./pkg-node/${file}`, `./pkg/${file}`);
-}
 
 const pkg = JSON.parse(fs.readFileSync("./pkg/package.json"));
 pkg.name = "oxigraph";
diff --git a/js/package.json b/js/package.json
index 72310055..5a81afa5 100644
--- a/js/package.json
+++ b/js/package.json
@@ -10,7 +10,7 @@
   "scripts": {
     "fmt": "biome format . --write && biome check . --apply-unsafe && biome format . --write",
     "test": "biome ci . && wasm-pack build --debug --target nodejs && mocha",
-    "build": "rm -rf pkg && wasm-pack build --release --target web --out-name web --out-dir pkg-web && wasm-pack build --release --target nodejs --out-name node --out-dir pkg-node && node build_package.js && rm -r pkg-web && rm -r pkg-node",
+    "build": "wasm-pack build --release --target web --out-name web && wasm-pack build --release --target nodejs --out-name node && node build_package.js",
     "release": "npm run build && npm publish ./pkg",
     "pack": "npm run build && npm pack ./pkg"
   },