diff --git a/src/msw/control.cpp b/src/msw/control.cpp
index ce7b2fca18..1a8d53a18e 100644
--- a/src/msw/control.cpp
+++ b/src/msw/control.cpp
@@ -143,7 +143,7 @@ bool wxControl::ProcessCommand(wxCommandEvent& event)
 #if WXWIN_COMPATIBILITY
     if ( m_callback )
     {
-        (void)(*m_callback)(this, event);
+        (void)(*m_callback)(*this, event);
 
         return TRUE;
     }