diff --git a/bin/build-scripts/bundle_dependencies b/bin/build-scripts/bundle_dependencies
index d6c40e9196..e9bdd0f694 100755
--- a/bin/build-scripts/bundle_dependencies
+++ b/bin/build-scripts/bundle_dependencies
@@ -31,7 +31,7 @@ build() {
     -e "$@"
   if [[ -z "$NO_UGLIFY" ]] ; then
     echo -n "minimizing... "
-    uglifyjs -o "$dest" "$dest"
+    uglifyjs -c -o "$dest" "$dest"
   fi
   echo "done."
 }