diff --git a/js/ui/appDisplay.js b/js/ui/appDisplay.js
index c8ac32841..2d58541f3 100644
--- a/js/ui/appDisplay.js
+++ b/js/ui/appDisplay.js
@@ -2205,7 +2205,7 @@ var AppIcon = GObject.registerClass({
     }
 
     vfunc_leave_event(crossingEvent) {
-        let ret = super.vfunc_leave_event(crossingEvent);
+        const ret = super.vfunc_leave_event(crossingEvent);
 
         this.fake_release();
         this._removeMenuTimeout();