diff --git a/data/dns/cybertinus.dn42 b/data/dns/cybertinus.dn42
index ffb72a710..2bc617bb1 100644
--- a/data/dns/cybertinus.dn42
+++ b/data/dns/cybertinus.dn42
@@ -2,7 +2,9 @@ domain:             cybertinus.dn42
 admin-c:            CYBERTINUS-DN42
 tech-c:             CYBERTINUS-DN42
 mnt-by:             CYBERTINUS-MNT
-nserver:            ns1.cybertinus.dn42
-nserver:            ns2.cybertinus.dn42
+nserver:            ns1.cybertinus.dn42 172.20.48.1
+nserver:            ns1.cybertinus.dn42 fd42:4242:2707::1
+nserver:            ns2.cybertinus.dn42 172.20.48.2
+nserver:            ns2.cybertinus.dn42 fd42:4242:2707::2
 status:             CONNECT
 source:             DN42