--- src/Main/TaxiDrawFrame.h
+++ src/Main/TaxiDrawFrame.h
@@ -110,7 +110,7 @@
 	// Load a new airport from the raw data location
 	void New();
 	// Enable/disable menu items that are only enabled when an airport is loaded.
-	void TDFrame::EnableAirportMenuItems(bool b);
+	void EnableAirportMenuItems(bool b);
 	
 public:
 	void EnableImageLoadedItems(bool b);