--- a/src/newgrf.cpp	Sat Aug 30 08:59:55 2008 +0000
+++ b/src/newgrf.cpp	Sat Aug 30 09:01:05 2008 +0000
@@ -738,6 +738,7 @@
 				} else if (cargo == 0xFF) {
 					rvi->cargo_type = CT_INVALID;
 				} else {
+					rvi->cargo_type = CT_INVALID;
 					grfmsg(2, "RoadVehicleChangeInfo: Invalid cargo type %d, using first refittable", cargo);
 				}
 			} break;