diff --git a/bgpd/bgp_fsm.h b/bgpd/bgp_fsm.h
index 752d6e2..b38e64c 100644
--- a/bgpd/bgp_fsm.h
+++ b/bgpd/bgp_fsm.h
@@ -72,6 +72,7 @@
   } while (0)
 
 /* Prototypes. */
+extern void bgp_fsm_nht_update(struct peer *, int valid);
 extern int bgp_event (struct thread *);
 extern int bgp_stop (struct peer *peer);
 extern void bgp_timer_set (struct peer *);