diff --git a/vitrage/common/utils.py b/vitrage/common/utils.py
index 5e6d1cd21..ea30b56e6 100644
--- a/vitrage/common/utils.py
+++ b/vitrage/common/utils.py
@@ -1,3 +1,10 @@
+# -*- encoding: utf-8 -*-
+# Copyright 2015 - Alcatel-Lucent
+# Copyright © 2014-2015 eNovance
+# Copyright 2010 United States Government as represented by the
+# Administrator of the National Aeronautics and Space Administration.
+# Copyright 2011 Justin Santa Barbara
+#
 # Licensed under the Apache License, Version 2.0 (the "License"); you may
 # not use this file except in compliance with the License. You may obtain
 # a copy of the License at
diff --git a/vitrage/i18n.py b/vitrage/i18n.py
index b0619cead..e86c7472a 100644
--- a/vitrage/i18n.py
+++ b/vitrage/i18n.py
@@ -1,3 +1,5 @@
+# Copyright 2015 - Alcatel-Lucent
+# Copyright 2014 Huawei Technologies Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License"); you may
 # not use this file except in compliance with the License. You may obtain
 # a copy of the License at
diff --git a/vitrage/opts.py b/vitrage/opts.py
index 5a5d951a6..ae38dc3e5 100644
--- a/vitrage/opts.py
+++ b/vitrage/opts.py
@@ -1,3 +1,4 @@
+# Copyright 2015 - Alcatel-Lucent
 # Licensed under the Apache License, Version 2.0 (the "License"); you may
 # not use this file except in compliance with the License. You may obtain
 # a copy of the License at
diff --git a/vitrage/service.py b/vitrage/service.py
index 77c579516..48faaa630 100644
--- a/vitrage/service.py
+++ b/vitrage/service.py
@@ -1,3 +1,4 @@
+# Copyright 2015 - Alcatel-Lucent
 # Licensed under the Apache License, Version 2.0 (the "License"); you may
 # not use this file except in compliance with the License. You may obtain
 # a copy of the License at