--- a/src/roadveh.h	Mon May 05 12:35:38 2008 +0000
+++ b/src/roadveh.h	Wed May 07 21:09:51 2008 +0000
@@ -7,6 +7,7 @@
 
 #include "vehicle_base.h"
 #include "engine_func.h"
+#include "engine_base.h"
 #include "economy_func.h"
 
 enum RoadVehicleSubType {