diff --git a/src/event.js b/src/event.js
index 9a1ac37d2..5fc39a18b 100644
--- a/src/event.js
+++ b/src/event.js
@@ -493,7 +493,7 @@ jQuery.event = {
 	},
 
 	mouseHooks: {
-		props: "button buttons clientX clientY fromElement offsetX offsetY pageX pageY screenX screenY toElement wheelDelta".split(" "),
+		props: "button buttons clientX clientY fromElement offsetX offsetY pageX pageY screenX screenY toElement".split(" "),
 		filter: function( event, original ) {
 			var eventDoc, doc, body,
 				button = original.button,