diff --git a/zebra/zserv.h b/zebra/zserv.h
index 5e8bcca..eaa164b 100644
--- a/zebra/zserv.h
+++ b/zebra/zserv.h
@@ -106,7 +106,8 @@
 extern int zsend_interface_update (int, struct zserv *, struct interface *);
 extern int zsend_route_multipath (int, struct zserv *, struct prefix *, 
                                   struct rib *);
-extern int zsend_router_id_update(struct zserv *, struct prefix *);
+extern int zsend_router_id_update (struct zserv *, struct prefix *,
+                                   vrf_id_t);
 
 extern pid_t pid;