--- a/src/roadveh_cmd.cpp	Tue Aug 07 20:42:02 2007 +0000
+++ b/src/roadveh_cmd.cpp	Tue Aug 07 23:07:10 2007 +0000
@@ -270,7 +270,7 @@
 		RebuildVehicleLists();
 		InvalidateWindow(WC_COMPANY, v->owner);
 		if (IsLocalPlayer())
-			InvalidateAutoreplaceWindow(VEH_ROAD, v->group_id); // updates the replace Road window
+			InvalidateAutoreplaceWindow(v->engine_type, v->group_id); // updates the replace Road window
 
 		GetPlayer(_current_player)->num_engines[p1]++;
 	}