diff --git a/doc/source/conf.py b/doc/source/conf.py
index b79e4059..aec93525 100755
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # 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/oslo/db/sqlalchemy/migration.py b/oslo/db/sqlalchemy/migration.py
index 8ea79906..acb35dfd 100644
--- a/oslo/db/sqlalchemy/migration.py
+++ b/oslo/db/sqlalchemy/migration.py
@@ -1,5 +1,3 @@
-# coding: utf-8
-#
 # Copyright (c) 2013 OpenStack Foundation
 # All Rights Reserved.
 #
diff --git a/tests/base.py b/tests/base.py
index a3069ed7..69e6a802 100644
--- a/tests/base.py
+++ b/tests/base.py
@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 # Copyright 2010-2011 OpenStack Foundation
 # Copyright (c) 2013 Hewlett-Packard Development Company, L.P.
 #