diff --git a/lib/OpenLayers/Events.js b/lib/OpenLayers/Events.js
index 691d88f429..8e1e3a5654 100644
--- a/lib/OpenLayers/Events.js
+++ b/lib/OpenLayers/Events.js
@@ -60,6 +60,8 @@ OpenLayers.Events.prototype = {
 
     /**
     * @param {event} evt
+    * 
+    * @return {OpenLayers.Pixel}
     */
     getMousePosition: function (evt) {
         var offsets = Position.page(this.div);