diff --git a/data/mntner/PETROS-MNT b/data/mntner/PETROS-MNT
index 0bfddc6e8..d90341952 100644
--- a/data/mntner/PETROS-MNT
+++ b/data/mntner/PETROS-MNT
@@ -3,3 +3,4 @@ admin-c:            PETROS-DN42
 tech-c:             PETROS-DN42
 mnt-by:             PETROS-MNT
 source:             DN42
+auth:               pgp-fingerprint E96AE36CEF02A513B28131CEA4402AA8EC7017EF