diff --git a/data/dns/dkjoker.dn42 b/data/dns/dkjoker.dn42
index 4ba1f2b8c..002f8e09b 100644
--- a/data/dns/dkjoker.dn42
+++ b/data/dns/dkjoker.dn42
@@ -1,7 +1,7 @@
 domain:             dkjoker.dn42
-admin-c:            DKJoker-DN42
-tech-c:             DKJoker-DN42
-mnt-by:             DKJoker-MNT
+admin-c:            DKJOKER-DN42
+tech-c:             DKJOKER-DN42
+mnt-by:             DKJOKER-MNT
 nserver:            ns1.dkjoker.dn42 172.23.231.64
 nserver:            ns1.dkjoker.dn42 fd91:7b3d:8d19::6
 remarks:            DNS hosted by dkjoker.dn42