--- a/src/airport_gui.cpp	Wed May 07 23:00:11 2008 +0000
+++ b/src/airport_gui.cpp	Thu May 08 11:31:41 2008 +0000
@@ -282,7 +282,7 @@
 
 static void ShowBuildAirportPicker()
 {
-	AllocateWindowDesc(&_build_airport_desc);
+	new Window(&_build_airport_desc);
 }
 
 void InitializeAirportGui()