diff -r 93b6e6de2898 -r 3a679b6e8b30 src/group_cmd.cpp
--- a/src/group_cmd.cpp	Sun Sep 09 10:34:32 2007 +0000
+++ b/src/group_cmd.cpp	Sun Sep 09 11:23:49 2007 +0000
@@ -354,7 +354,7 @@
  */
 void RemoveVehicleFromGroup(const Vehicle *v)
 {
-	if (!v->IsValid() || !(v->HasFront() && v->IsPrimaryVehicle())) return;
+	if (!v->IsValid() || !v->IsPrimaryVehicle()) return;
 
 	if (!IsDefaultGroupID(v->group_id)) DecreaseGroupNumVehicle(v->group_id);
 }