diff --git a/ospfd/ospf_lsa.c b/ospfd/ospf_lsa.c
index e62a4e7..6bd8c3e 100644
--- a/ospfd/ospf_lsa.c
+++ b/ospfd/ospf_lsa.c
@@ -2206,7 +2206,7 @@
 void
 ospf_external_lsa_flush (struct ospf *ospf,
 			 u_char type, struct prefix_ipv4 *p,
-			 unsigned int ifindex /*, struct in_addr nexthop */)
+			 ifindex_t ifindex /*, struct in_addr nexthop */)
 {
   struct ospf_lsa *lsa;