diff --git a/ospf6d/ospf6_lsdb.c b/ospf6d/ospf6_lsdb.c
index 23a33d3128..7e08d58791 100644
--- a/ospf6d/ospf6_lsdb.c
+++ b/ospf6d/ospf6_lsdb.c
@@ -389,8 +389,10 @@ void ospf6_lsdb_show(struct vty *vty, enum ospf_lsdb_show_level level,
 	if (level == OSPF6_LSDB_SHOW_LEVEL_NORMAL)
 		ospf6_lsa_show_summary_header(vty);
 
-	end = ospf6_lsdb_head(lsdb, !!type + !!(type && adv_router), *type,
-			      *adv_router, &lsa);
+	end = ospf6_lsdb_head(lsdb, !!type + !!(type && adv_router),
+			      type ? *type : 0,
+			      adv_router ? *adv_router : 0,
+			      &lsa);
 	while (lsa) {
 		if ((!adv_router || lsa->header->adv_router == *adv_router)
 		    && (!id || lsa->header->id == *id))