diff --git a/data/aut-num/AS4242423160 b/data/aut-num/AS4242423160
index 113065c61..fabac15ae 100644
--- a/data/aut-num/AS4242423160
+++ b/data/aut-num/AS4242423160
@@ -2,4 +2,5 @@ aut-num:        4242423160
 as-name:        AS for ENS160
 admin-c:        ENS160-DN42
 tech-c:         ENS160-DN42
-mnt-by:         ENS160-MNT
\ No newline at end of file
+mnt-by:         ENS160-MNT
+source:         DN42
\ No newline at end of file