diff --git a/library/chacha20.c b/library/chacha20.c
index d8a51ec..78467d3 100644
--- a/library/chacha20.c
+++ b/library/chacha20.c
@@ -5,7 +5,7 @@
  *
  * \author Daniel King <damaki.gh@gmail.com>
  *
- *  Copyright (C) 2006-2016, ARM Limited, All Rights Reserved
+ *  Copyright The Mbed TLS Contributors
  *  SPDX-License-Identifier: Apache-2.0
  *
  *  Licensed under the Apache License, Version 2.0 (the "License"); you may
@@ -19,8 +19,6 @@
  *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  *  See the License for the specific language governing permissions and
  *  limitations under the License.
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
  */
 
 #include "common.h"