diff --git a/lib/devices/ios/ios.js b/lib/devices/ios/ios.js
index db814292e..b080ef48b 100644
--- a/lib/devices/ios/ios.js
+++ b/lib/devices/ios/ios.js
@@ -70,8 +70,8 @@ var IOS = function(args) {
   this.onPageChangeCb = null;
   this.useRobot = args.robotPort > 0;
   this.robotUrl = this.useRobot ? "http://" + args.robotAddress + ":" + args.robotPort + "" : null;
-  this.safariLauncherAppName = "/safarilauncher.app";
-  this.isSafariLauncherApp = (typeof args.app !== "undefined") && (args.app.toLowerCase().indexOf(this.safariLauncherAppName, args.app.length - this.safariLauncherAppName.length) !== -1);
+  var safariLauncherAppName = "/safarilauncher.app";
+  this.isSafariLauncherApp = (typeof args.app !== "undefined") && (args.app.toLowerCase().indexOf(safariLauncherAppName, args.app.length - safariLauncherAppName.length) !== -1);
   this.capabilities = {
       version: '6.0'
       , webStorageEnabled: false