diff --git a/lib/dns/win32/libdns.def.in b/lib/dns/win32/libdns.def.in
index 11f5c09b6c..8d166679b2 100644
--- a/lib/dns/win32/libdns.def.in
+++ b/lib/dns/win32/libdns.def.in
@@ -1202,6 +1202,8 @@ dns_zone_iattach
 dns_zone_idetach
 dns_zone_isdynamic
 dns_zone_isforced
+dns_zone_isloaded
+dns_zone_ismirror
 dns_zone_keydone
 dns_zone_link
 dns_zone_load