diff --git a/lib/dns/rbtdb.c b/lib/dns/rbtdb.c
index 7a7e537dcd..201b314b8b 100644
--- a/lib/dns/rbtdb.c
+++ b/lib/dns/rbtdb.c
@@ -2706,6 +2706,8 @@ add_rdataset_callback(dns_rdatacallbacks_t *callbacks, dns_name_t *name,
 	if (result == DNS_R_SUCCESS &&
 	    delegating_type(rbtdb, node, rdataset->type))
 		node->find_callback = 1;
+	else if (result == DNS_R_UNCHANGED)
+		result = DNS_R_SUCCESS;
 
 	return (result);
 }