--- a/src/rail_gui.cpp	Wed May 07 09:07:19 2008 +0000
+++ b/src/rail_gui.cpp	Wed May 07 13:10:15 2008 +0000
@@ -30,6 +30,7 @@
 #include "widgets/dropdown_type.h"
 #include "widgets/dropdown_func.h"
 #include "tunnelbridge.h"
+#include "tilehighlight_func.h"
 
 #include "bridge_map.h"
 #include "rail_map.h"