diff --git a/ganttzk/src/main/resources/web/ganttz/zul/leftPane.zul b/ganttzk/src/main/resources/web/ganttz/zul/leftPane.zul
index 9e983b45d..933e9d4eb 100644
--- a/ganttzk/src/main/resources/web/ganttz/zul/leftPane.zul
+++ b/ganttzk/src/main/resources/web/ganttz/zul/leftPane.zul
@@ -18,7 +18,7 @@
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 -->
 
-<zk xmlns:n="http://www.zkoss.org/2005/zk/native">
-    <n:div id="listdetails_container">
-    </n:div>
+<zk>
+    <div id="listdetails_container">
+    </div>
 </zk>
\ No newline at end of file