diff --git a/ospf6d/ospf6_interface.c b/ospf6d/ospf6_interface.c
index efa5d2b7ab..9bc81398c6 100644
--- a/ospf6d/ospf6_interface.c
+++ b/ospf6d/ospf6_interface.c
@@ -1719,8 +1719,11 @@ void ospf6_interface_start(struct ospf6_interface *oi)
 	if (oi->area_id_format == OSPF6_AREA_FMT_UNSET)
 		return;
 
-	if (oi->area)
+	if (oi->area) {
+		/* Recompute cost */
+		ospf6_interface_recalculate_cost(oi);
 		return;
+	}
 
 	ospf6 = oi->interface->vrf->info;
 	if (!ospf6)