diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/GanttPanel.java b/ganttzk/src/main/java/org/zkoss/ganttz/GanttPanel.java
index 4fed40a11..98214be98 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/GanttPanel.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/GanttPanel.java
@@ -71,6 +71,6 @@ public class GanttPanel extends XulElement implements AfterCompose {
     }
 
     public void comingFromAnotherTab() {
-        timeTrackerComponent.getTimeTracker().forceNotifyZoom();
+        timeTrackerComponent.recreate();
     }
 }
\ No newline at end of file
diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/timetracker/TimeTracker.java b/ganttzk/src/main/java/org/zkoss/ganttz/timetracker/TimeTracker.java
index 9dc479404..b03ff5c11 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/timetracker/TimeTracker.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/timetracker/TimeTracker.java
@@ -164,8 +164,4 @@ public class TimeTracker {
                 .toDateMidnight().toDate();
     }
 
-    public void forceNotifyZoom() {
-        fireZoomChanged();
-    }
-
 }