diff --git a/utils/roll_browser.js b/utils/roll_browser.js
old mode 100644
new mode 100755
index 2d5f24608d..248dd50081
--- a/utils/roll_browser.js
+++ b/utils/roll_browser.js
@@ -1,3 +1,4 @@
+#!/usr/bin/env node
 /**
  * Copyright 2017 Google Inc. All rights reserved.
  * Modifications copyright (c) Microsoft Corporation.