diff --git a/src/GEOMBase/GEOMBase_Skeleton.h b/src/GEOMBase/GEOMBase_Skeleton.h
index 7f1f61d6b..b4bffe4df 100644
--- a/src/GEOMBase/GEOMBase_Skeleton.h
+++ b/src/GEOMBase/GEOMBase_Skeleton.h
@@ -87,7 +87,7 @@ protected:
     QString myHelpFileName;
 
 protected slots:
-    void ClickOnCancel();
+    virtual void ClickOnCancel();
     void LineEditReturnPressed();
     void DeactivateActiveDialog();
     void ActivateThisDialog();