diff --git a/uppsrc/CtrlLib/CtrlUtil.h b/uppsrc/CtrlLib/CtrlUtil.h
index 2c996c6e0..db6192b65 100644
--- a/uppsrc/CtrlLib/CtrlUtil.h
+++ b/uppsrc/CtrlLib/CtrlUtil.h
@@ -245,11 +245,13 @@ class TrayIcon : private Ctrl {
 	NotifyIconNew  nid;
 	HWND           hwnd;
 
-	virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam);
 	void Notify(dword msg);
 	void DoMenu(Bar& bar);
 	void Message(int type, const char *title, const char *text, int timeout = 10);
 
+protected:
+	virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam);
+
 public:
 	virtual void    Menu(Bar& bar);
 	virtual void    LeftDown();