diff --git a/include/wx/motif/app.h b/include/wx/motif/app.h
index 7787929380..855a8267da 100644
--- a/include/wx/motif/app.h
+++ b/include/wx/motif/app.h
@@ -82,6 +82,9 @@ public:
     // Returns TRUE if a key down event has been processed
     virtual bool CheckForKeyDown(WXEvent* event);
 
+    // Returns TRUE if a key up event has been processed
+    virtual bool CheckForKeyUp(WXEvent* event);
+
 protected:
     bool                  m_showOnInit;