diff --git a/sys/netinet6/nd6.c b/sys/netinet6/nd6.c
index f102817ed086..1056e688bdad 100644
--- a/sys/netinet6/nd6.c
+++ b/sys/netinet6/nd6.c
@@ -1746,7 +1746,7 @@ nd6_ioctl(u_long cmd, caddr_t data, struct ifnet *ifp)
 	case SIOCSNDFLUSH_IN6:	/* XXX: the ioctl name is confusing... */
 		/* sync kernel routing table with the default router list */
 		defrouter_reset();
-		defrouter_select();
+		defrouter_select_fib(RT_ALL_FIBS);
 		break;
 	case SIOCSPFXFLUSH_IN6:
 	{
@@ -1786,7 +1786,7 @@ nd6_ioctl(u_long cmd, caddr_t data, struct ifnet *ifp)
 
 		defrouter_reset();
 		nd6_defrouter_flush_all();
-		defrouter_select();
+		defrouter_select_fib(RT_ALL_FIBS);
 		break;
 	}
 	case SIOCGNBRINFO_IN6:
diff --git a/sys/netinet6/nd6.h b/sys/netinet6/nd6.h
index 82aec2617f79..d1f84001547d 100644
--- a/sys/netinet6/nd6.h
+++ b/sys/netinet6/nd6.h
@@ -405,7 +405,6 @@ struct nd_defrouter *defrouter_lookup(struct in6_addr *, struct ifnet *);
 struct nd_defrouter *defrouter_lookup_locked(struct in6_addr *, struct ifnet *);
 void defrouter_reset(void);
 void defrouter_select_fib(int fibnum);
-void defrouter_select(void);
 void defrouter_rele(struct nd_defrouter *);
 bool defrouter_remove(struct in6_addr *, struct ifnet *);
 bool nd6_defrouter_list_empty(void);
diff --git a/sys/netinet6/nd6_rtr.c b/sys/netinet6/nd6_rtr.c
index c462ef26aee9..1e543544427d 100644
--- a/sys/netinet6/nd6_rtr.c
+++ b/sys/netinet6/nd6_rtr.c
@@ -987,16 +987,6 @@ defrouter_select_fib(int fibnum)
 		defrouter_rele(selected_dr);
 }
 
-/*
- * Maintain old KPI for default router selection.
- * If unspecified, we can re-select routers for all FIBs.
- */
-void
-defrouter_select(void)
-{
-	defrouter_select_fib(RT_ALL_FIBS);
-}
-
 /*
  * for default router selection
  * regards router-preference field as a 2-bit signed integer