diff --git a/js/ui/grabHelper.js b/js/ui/grabHelper.js
index 10e597999..1543c14cd 100644
--- a/js/ui/grabHelper.js
+++ b/js/ui/grabHelper.js
@@ -67,7 +67,7 @@ const GrabHelper = new Lang.Class({
     },
 
     _isWithinGrabbedActor: function(actor) {
-       let currentActor = this.currentGrab.actor;
+        let currentActor = this.currentGrab.actor;
         while (actor) {
             if (this._actors.indexOf(actor) != -1)
                 return true;