diff --git a/src/fx/fx.js b/src/fx/fx.js
index eee69de30..64449865b 100644
--- a/src/fx/fx.js
+++ b/src/fx/fx.js
@@ -315,7 +315,7 @@ jQuery.fn.extend({
 	animate: function(prop,speed,callback) {
 		return this.queue(function(){
 		
-			this.curAnim = prop;
+			this.curAnim = jQuery.extend({}, prop);
 			
 			for ( var p in prop ) {
 				var e = new jQuery.fx( this, jQuery.speed(speed,callback), p );