git  diff zul/
diff --git a/zul/src/archive/web/js/zul/wnd/Panel.js b/zul/src/archive/web/js/zul/wnd/Panel.js
index cf16167..78fa810 100644
--- a/zul/src/archive/web/js/zul/wnd/Panel.js
+++ b/zul/src/archive/web/js/zul/wnd/Panel.js
@@ -1074,7 +1074,8 @@ zul.wnd.Panel = zk.$extends(zul.Widget, {
                return false;
        },
        _aftermove: function (dg, evt) {
-               dg.control.zsync();
+               var wgt = dg.control;
+               wgt.zsync();
                zk(wgt).redoCSS(-1, {'fixFontIcon': true});
        },
        // drag sizing
@@ -1140,4 +1141,4 @@ zul.wnd.PanelRenderer = {
                return true;
        }
 };
-})();
\ No newline at end of file
+})();