diff --git a/usr.sbin/ctld/discovery.c b/usr.sbin/ctld/discovery.c
--- a/usr.sbin/ctld/discovery.c
+++ b/usr.sbin/ctld/discovery.c
@@ -161,7 +161,7 @@
 		ag = targ->t_auth_group;
 	pg = conn->conn_portal->p_portal_group;
 
-	assert(pg->pg_discovery_auth_group != PG_FILTER_UNKNOWN);
+	assert(pg->pg_discovery_filter != PG_FILTER_UNKNOWN);
 
 	if (pg->pg_discovery_filter >= PG_FILTER_PORTAL &&
 	    auth_portal_check(ag, &conn->conn_initiator_sa) != 0) {