diff --git a/data/inetnum/172.20.0.0_27 b/data/inetnum/172.20.0.0_27
index 7e1e5a317..1d734b5f8 100644
--- a/data/inetnum/172.20.0.0_27
+++ b/data/inetnum/172.20.0.0_27
@@ -3,7 +3,7 @@ netname:            MARLIN-IPV4
 country:            CN
 admin-c:            MARLIN-DN42
 tech-c:             MARLIN-DN42
-mnt-by:             MARLIN-MNT
+mnt-by:             DN42-MNT
 status:             ASSIGNED
 cidr:               172.20.0.0/27
 source:             DN42