diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/Planner.java b/ganttzk/src/main/java/org/zkoss/ganttz/Planner.java
index dc8d35a02..b01c16244 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/Planner.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/Planner.java
@@ -62,13 +62,13 @@ import org.zkoss.zk.ui.event.Event;
 import org.zkoss.zk.ui.event.EventListener;
 import org.zkoss.zk.ui.event.Events;
 import org.zkoss.zk.ui.util.Clients;
-import org.zkoss.zkex.zul.api.South;
 import org.zkoss.zul.Button;
 import org.zkoss.zul.ListModel;
 import org.zkoss.zul.Listbox;
 import org.zkoss.zul.Listitem;
 import org.zkoss.zul.Separator;
 import org.zkoss.zul.SimpleListModel;
+import org.zkoss.zul.South;
 
 public class Planner extends HtmlMacroComponent  {