diff --git a/bin/copy-dist.ts b/bin/copy-dist.ts
index 38413b1b9..9fb520907 100644
--- a/bin/copy-dist.ts
+++ b/bin/copy-dist.ts
@@ -87,5 +87,18 @@ function cleanupNodeModules() {
         .map(el => path.join(DEST_DIR, el.parentPath, el.name))
         .forEach(dir => fs.removeSync(dir));
 
+
+    // Delete unnecessary files based on file extension
+    const filterableFileExt = new Set([
+        "ts",
+        "map"
+    ])
+
+    nodeDir
+        // TriliumNextTODO: check if we can improve this naive file ext matching
+        .filter(el => el.isFile() && filterableFileExt.has(el.name.split(".").at(-1) || ""))
+        .map(file => path.join(DEST_DIR, file.parentPath, file.name))
+        .forEach(file => fs.removeSync(file));
+
 }
 
diff --git a/bin/copy-trilium.sh b/bin/copy-trilium.sh
index e99bf08b9..6aea1175c 100755
--- a/bin/copy-trilium.sh
+++ b/bin/copy-trilium.sh
@@ -22,7 +22,5 @@ if [[ -d "$BUILD_DIR"/node_modules ]]; then
 fi
 
 find $BUILD_DIR/libraries -name "*.map" -type f -delete
-find $BUILD_DIR/node_modules -name "*.map" -type f -delete
-find $BUILD_DIR -name "*.ts" -type f -delete
 
 unset f d BUILD_DIR