diff --git a/common.c b/common.c
index 540cec5..c0497fd 100644
--- a/common.c
+++ b/common.c
@@ -1,19 +1,5 @@
-/* Copyright 2016 IBM
- *
- * 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
- *
- *    http://www.apache.org/licenses/LICENSE-2.0
- *
- *	Unless required by applicable law or agreed to in writing, software
- *	distributed under the License is distributed on an "AS IS" BASIS,
- *	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *	See the License for the specific language governing permissions and
- *	limitations under the License.
- *
- */
-
+// SPDX-License-Identifier: Apache-2.0
+// Copyright (C) 2018 IBM Corp.
 #define _GNU_SOURCE
 #include <stdarg.h>
 #include <stdbool.h>