diff --git a/data/aut-num/AS4242422225 b/data/aut-num/AS4242422225
index 3564aaf42..d871435b0 100644
--- a/data/aut-num/AS4242422225
+++ b/data/aut-num/AS4242422225
@@ -5,5 +5,5 @@ tech-c:             MARAUN-DN42
 remarks:            Peers are welcome, contact maraun@web.de
 remarks:            OpenVPN on all nodes, wireguard @ dn42-de.maraun.de
 remarks:            RFC7999 are not supported yet
-mnt-by:             MARAUN-
+mnt-by:             MARAUN-MNT
 source:             DN42