diff --git a/data/dns/yi.dn42 b/data/dns/yi.dn42
index db0609fb0..2d3562478 100644
--- a/data/dns/yi.dn42
+++ b/data/dns/yi.dn42
@@ -1,5 +1,6 @@
 domain:             yi.dn42
 nserver:            dns1.yi.dn42 172.22.189.96
+nserver:            dns1.yi.dn42 fd69:9889:9692:1::
 admin-c:            YI-DN42
 tech-c:             YI-DN42
 mnt-by:             YI-MNT