diff --git a/lib/renderer/override.js b/lib/renderer/override.js
index 4bce0c6b770f..896103b6c1f7 100644
--- a/lib/renderer/override.js
+++ b/lib/renderer/override.js
@@ -154,7 +154,7 @@ window.open = function (url, frameName, features) {
 }
 
 // Use the dialog API to implement alert().
-window.alert = function(message, title) {
+window.alert = function (message, title) {
   var buttons
   if (arguments.length === 0) {
     message = ''