diff --git a/lib/scripts/delay.js b/lib/scripts/delay.js
index 2ef9f8846badb145e639c32d55e9748d2479c017..edd53def397221a9c110b4e98d7c0ca3d412c888 100644
--- a/lib/scripts/delay.js
+++ b/lib/scripts/delay.js
@@ -51,6 +51,7 @@ Delay.prototype = {
     },
 
     start: function () {
+        DEPRECATED('don\'t use the Delay object, use window.timeout with a callback instead');
         this.delTimer();
         var _this = this;
         this.timer = timer.add(function () { _this.exec.call(_this); },