diff --git a/data/dns/maiyun.dn42 b/data/dns/maiyun.dn42
index 886056018..fb69567a3 100644
--- a/data/dns/maiyun.dn42
+++ b/data/dns/maiyun.dn42
@@ -3,5 +3,7 @@ admin-c:            MAIYUN-DN42
 tech-c:             MAIYUN-DN42
 mnt-by:             MAIYUN-MNT
 nserver:            ns1.maiyun.dn42 172.23.6.161
-nserver:            ns1.maiyun.dn42 fdc0:d227:306:ee01::161
+nserver:            ns1.maiyun.dn42 fdc0:d227:306:ee01::1
+nserver:            ns2.maiyun.dn42 172.23.6.162
+nserver:            ns2.maiyun.dn42 fdc0:d227:306:ee01::2
 source:             DN42
diff --git a/data/inet6num/fdc0:d227:306::_48 b/data/inet6num/fdc0:d227:306::_48
index 68e1e6d80..704c15514 100644
--- a/data/inet6num/fdc0:d227:306::_48
+++ b/data/inet6num/fdc0:d227:306::_48
@@ -7,5 +7,6 @@ admin-c:            MAIYUN-DN42
 tech-c:             MAIYUN-DN42
 mnt-by:             MAIYUN-MNT
 nserver:            ns1.maiyun.dn42
+nserver:            ns2.maiyun.dn42
 status:             ASSIGNED
 source:             DN42
diff --git a/data/inetnum/172.23.6.160_27 b/data/inetnum/172.23.6.160_27
index 94b0f1880..6cfe170e3 100644
--- a/data/inetnum/172.23.6.160_27
+++ b/data/inetnum/172.23.6.160_27
@@ -7,5 +7,6 @@ admin-c:            MAIYUN-DN42
 tech-c:             MAIYUN-DN42
 mnt-by:             MAIYUN-MNT
 nserver:            ns1.maiyun.dn42
+nserver:            ns2.maiyun.dn42
 status:             ASSIGNED
 source:             DN42