diff --git a/src/event.js b/src/event.js
index a475a25ea..5d4d9a23b 100644
--- a/src/event.js
+++ b/src/event.js
@@ -486,7 +486,7 @@ jQuery.event = {
 	},
 
 	mouseHooks: {
-		props: "button buttons clientX clientY fromElement layerX layerY offsetX offsetY pageX pageY screenX screenY toElement wheelDelta".split(" "),
+		props: "button buttons clientX clientY fromElement offsetX offsetY pageX pageY screenX screenY toElement wheelDelta".split(" "),
 		filter: function( event, original ) {
 			var eventDoc, doc, body,
 				button = original.button,