diff --git a/cfg_checker/common/file_utils.py b/cfg_checker/common/file_utils.py
index faf7cf0..8b1652a 100644
--- a/cfg_checker/common/file_utils.py
+++ b/cfg_checker/common/file_utils.py
@@ -1,3 +1,5 @@
+#    Author: Alex Savatieiev (osavatieiev@mirantis.com; a.savex@gmail.com)
+#    Copyright 2019-2022 Mirantis, Inc.
 import atexit
 import grp
 import os