diff --git a/ui/jquery.ui.datepicker.js b/ui/jquery.ui.datepicker.js
index 16ce463fb..4ba9857ef 100644
--- a/ui/jquery.ui.datepicker.js
+++ b/ui/jquery.ui.datepicker.js
@@ -800,10 +800,8 @@ $.extend(Datepicker.prototype, {
 		if (this._datepickerShowing) {
 			var showAnim = this._get(inst, 'showAnim');
 			var duration = this._get(inst, 'duration');
-			var self = this;
 			var postProcess = function() {
 				$.datepicker._tidyDialog(inst);
-				self._curInst = null;
 			};
 			if ($.effects && $.effects[showAnim])
 				inst.dpDiv.hide(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);