diff --git a/designer-base/src/main/java/com/fr/design/gui/icontainer/UIEastResizableContainer.java b/designer-base/src/main/java/com/fr/design/gui/icontainer/UIEastResizableContainer.java
index 876ebc0ca9..b3d6e054d5 100644
--- a/designer-base/src/main/java/com/fr/design/gui/icontainer/UIEastResizableContainer.java
+++ b/designer-base/src/main/java/com/fr/design/gui/icontainer/UIEastResizableContainer.java
@@ -97,6 +97,9 @@ public class UIEastResizableContainer extends JPanel {
     }
 
     protected void resizePanel(MouseEvent e) {
+        if (!isRightPaneVisible()) {
+            return;
+        }
         int dx = e.getX() - dragPoint.x;
         Dimension size = getSize();