--- a/src/road_gui.cpp	Sun Jan 06 11:39:40 2008 +0000
+++ b/src/road_gui.cpp	Sun Jan 06 18:56:43 2008 +0000
@@ -9,6 +9,7 @@
 #include "gui.h"
 #include "window_gui.h"
 #include "station_gui.h"
+#include "terraform_gui.h"
 #include "viewport.h"
 #include "command_func.h"
 #include "variables.h"