diff --git a/data/mntner/JUMBLE-MNT b/data/mntner/JUMBLE-MNT
index 446becbe5..fd2e7e640 100644
--- a/data/mntner/JUMBLE-MNT
+++ b/data/mntner/JUMBLE-MNT
@@ -2,4 +2,5 @@ mntner:             JUMBLE-MNT
 admin-c:            JUMBLE-DN42
 tech-c:             JUMBLE-DN42
 mnt-by:             JUMBLE-MNT
-source:             DN42
\ No newline at end of file
+source:             DN42
+auth:               AF633BC932170798157C29A29810235DA7C8A500
\ No newline at end of file