diff --git a/ospf6d/ospf6_asbr.c b/ospf6d/ospf6_asbr.c
index b1620d4..6eca142 100644
--- a/ospf6d/ospf6_asbr.c
+++ b/ospf6d/ospf6_asbr.c
@@ -411,7 +411,7 @@
 }
 
 void
-ospf6_asbr_redistribute_add (int type, int ifindex, struct prefix *prefix,
+ospf6_asbr_redistribute_add (int type, ifindex_t ifindex, struct prefix *prefix,
                              u_int nexthop_num, struct in6_addr *nexthop)
 {
   int ret;
@@ -557,7 +557,8 @@
 }
 
 void
-ospf6_asbr_redistribute_remove (int type, int ifindex, struct prefix *prefix)
+ospf6_asbr_redistribute_remove (int type, ifindex_t ifindex,
+                                struct prefix *prefix)
 {
   struct ospf6_route *match;
   struct ospf6_external_info *info = NULL;