diff --git a/contrib/samples/ogl/studio/view.cpp b/contrib/samples/ogl/studio/view.cpp
index 9fac0a9b07..5e4d579c1e 100644
--- a/contrib/samples/ogl/studio/view.cpp
+++ b/contrib/samples/ogl/studio/view.cpp
@@ -309,8 +309,6 @@ void csDiagramView::OnCopyUpdate(wxUpdateUIEvent& event)
 
 void csDiagramView::OnPasteUpdate(wxUpdateUIEvent& event)
 {
-    /* csDiagramDocument *doc = */ (csDiagramDocument *)GetDocument();
-
     int n = wxGetApp().GetDiagramClipboard().GetCount();
 
     event.Enable( (n > 0) );