diff --git a/include/wx/dataview.h b/include/wx/dataview.h
index 5cebecc126..781f87dc95 100644
--- a/include/wx/dataview.h
+++ b/include/wx/dataview.h
@@ -706,7 +706,7 @@ public:
     virtual void UnselectAll() = 0;
 
     virtual void Expand( const wxDataViewItem & item ) = 0;
-    virtual void ExpandAncestors( const wxDataViewItem & item );
+    void ExpandAncestors( const wxDataViewItem & item );
     virtual void Collapse( const wxDataViewItem & item ) = 0;
     virtual bool IsExpanded( const wxDataViewItem & item ) const = 0;
 
diff --git a/interface/wx/dataview.h b/interface/wx/dataview.h
index 950f6a21a1..eef3737576 100644
--- a/interface/wx/dataview.h
+++ b/interface/wx/dataview.h
@@ -1299,7 +1299,7 @@ public:
        ensures that the item itself as well as all ancestor
        items have been read from the model by the control.
     */
-    virtual void ExpandAncestors( const wxDataViewItem & item );
+    void ExpandAncestors( const wxDataViewItem & item );
 
     /**
         Returns pointer to the column. @a pos refers to the position in the