diff --git a/designer-base/src/main/java/com/fr/design/file/MultiTemplateTabPane.java b/designer-base/src/main/java/com/fr/design/file/MultiTemplateTabPane.java
index 5d9e5bde7..3f1b05d42 100644
--- a/designer-base/src/main/java/com/fr/design/file/MultiTemplateTabPane.java
+++ b/designer-base/src/main/java/com/fr/design/file/MultiTemplateTabPane.java
@@ -783,7 +783,7 @@ public class MultiTemplateTabPane extends Row {
 
 
     private boolean isOverListDown(int evtX) {
-        int maxWidth = getWidth() - scale(TRAILING_WIDTH) - scale(LEADING_WIDTH);
+        int maxWidth = getWidth() - scale(LEADING_WIDTH);
         return evtX >= (maxWidth + SMALLGAP) && evtX <= (getWidth() - SMALLGAP);
     }