diff --git a/ryu/tests/unit/lib/test_rpc.py b/ryu/tests/unit/lib/test_rpc.py
index 405fbbc0..69cd896c 100644
--- a/ryu/tests/unit/lib/test_rpc.py
+++ b/ryu/tests/unit/lib/test_rpc.py
@@ -1,7 +1,5 @@
-#!/usr/bin/env python
-#
-# Copyright (C) 2013 Nippon Telegraph and Telephone Corporation.
-# Copyright (C) 2013 YAMAMOTO Takashi <yamamoto at valinux co jp>
+# Copyright (C) 2013-2015 Nippon Telegraph and Telephone Corporation.
+# Copyright (C) 2013-2015 YAMAMOTO Takashi <yamamoto at valinux co jp>
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ryu/tests/unit/lib/test_stringify.py b/ryu/tests/unit/lib/test_stringify.py
index da784149..b9b74a2b 100644
--- a/ryu/tests/unit/lib/test_stringify.py
+++ b/ryu/tests/unit/lib/test_stringify.py
@@ -1,7 +1,5 @@
-#!/usr/bin/env python
-#
-# Copyright (C) 2013 Nippon Telegraph and Telephone Corporation.
-# Copyright (C) 2013 YAMAMOTO Takashi <yamamoto at valinux co jp>
+# Copyright (C) 2013-2015 Nippon Telegraph and Telephone Corporation.
+# Copyright (C) 2013-2015 YAMAMOTO Takashi <yamamoto at valinux co jp>
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/ryu/tests/unit/ofproto/test_parser.py b/ryu/tests/unit/ofproto/test_parser.py
index a567039e..5d5d1ea8 100644
--- a/ryu/tests/unit/ofproto/test_parser.py
+++ b/ryu/tests/unit/ofproto/test_parser.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-#
 # Copyright (C) 2013,2014,2015 Nippon Telegraph and Telephone Corporation.
 # Copyright (C) 2013,2014,2015 YAMAMOTO Takashi <yamamoto at valinux co jp>
 #