1 files changed, 1 insertions, 0 deletions

diff --git a/js/push.js b/js/push.js
index faaaa6a..a069674 100644
--- a/js/push.js
+++ b/js/push.js
@@ -8,6 +8,7 @@
 /* global _gaq: true */
 
 !function () {
+  'use strict';
 
   var noop = function () {};