diff --git a/cfg_checker/common/config_file.py b/cfg_checker/common/config_file.py
index 513e0ec..5f9dd55 100644
--- a/cfg_checker/common/config_file.py
+++ b/cfg_checker/common/config_file.py
@@ -1,3 +1,5 @@
+#    Author: Alex Savatieiev (osavatieiev@mirantis.com; a.savex@gmail.com)
+#    Copyright 2019-2022 Mirantis, Inc.
 import configparser
 import os