diff --git a/data/aut-num/ABCDE-MNT.txt b/data/aut-num/ABCDE-MNT
similarity index 97%
rename from data/aut-num/ABCDE-MNT.txt
rename to data/aut-num/ABCDE-MNT
index 8e4d04aed..6078965f3 100644
--- a/data/aut-num/ABCDE-MNT.txt
+++ b/data/aut-num/ABCDE-MNT
@@ -1,5 +1,5 @@
-mntner:             ABCDE-MNT
-admin-c:            ABCDE-DN42
-tech-c:             ABCDE-DN42
-mnt-by:             ABCDE-MNT
+mntner:             ABCDE-MNT
+admin-c:            ABCDE-DN42
+tech-c:             ABCDE-DN42
+mnt-by:             ABCDE-MNT
 source:             DN42
\ No newline at end of file