diff --git a/include/wx/msw/control.h b/include/wx/msw/control.h
index 512f308afa..c8e1e94644 100644
--- a/include/wx/msw/control.h
+++ b/include/wx/msw/control.h
@@ -69,6 +69,7 @@ protected:
     // choose the default border for this window
     virtual wxBorder GetDefaultBorder() const;
 
+    // return default best size (doesn't really make any sense, override this)
     virtual wxSize DoGetBestSize() const;
 
     // create the control of the given Windows class: this is typically called