diff --git a/js/ui/dnd.js b/js/ui/dnd.js
index 404c638aa..64c1eb51b 100644
--- a/js/ui/dnd.js
+++ b/js/ui/dnd.js
@@ -38,10 +38,10 @@ var DragDropResult = {
     SUCCESS:  1,
     CONTINUE: 2
 };
+var dragMonitors = [];
 
 let eventHandlerActor = null;
 let currentDraggable = null;
-let dragMonitors = [];
 
 function _getEventHandlerActor() {
     if (!eventHandlerActor) {