diff --git a/lib/dns/include/dns/events.h b/lib/dns/include/dns/events.h
index c32e0d1491..f456ade289 100644
--- a/lib/dns/include/dns/events.h
+++ b/lib/dns/include/dns/events.h
@@ -35,6 +35,8 @@ ISC_LANG_BEGINDECLS
 #define DNS_EVENT_QUERYDONE			(ISC_EVENTCLASS_DNS + 5)
 #define DNS_EVENT_DISPATCH			(ISC_EVENTCLASS_DNS + 6)
 #define DNS_EVENT_TCPMSG			(ISC_EVENTCLASS_DNS + 7)
+#define DNS_EVENT_MOREADDRESSES			(ISC_EVENTCLASS_DNS + 8)
+#define DNS_EVENT_NOMOREADDRESSES		(ISC_EVENTCLASS_DNS + 9)
 
 #define DNS_EVENT_FIRSTEVENT			(ISC_EVENTCLASS_DNS + 0)
 #define DNS_EVENT_LASTEVENT			(ISC_EVENTCLASS_DNS + 65535)