diff --git a/tools/js/download_bower.py b/tools/js/download_bower.py
index 1df4b826bc..65bda74082 100755
--- a/tools/js/download_bower.py
+++ b/tools/js/download_bower.py
@@ -106,7 +106,7 @@ def main():
                 args.b, '--quiet', 'install', '%s#%s' % (args.p, args.v)))
         bc = os.path.join(cwd, 'bower_components')
         subprocess.check_call(
-            ['zip', '-q', '--exclude', '.bower.json', '-r', cached, args.n],
+            ['detzip', '--exclude', '.bower.json', cached, args.n],
             cwd=bc)
 
         if args.s: