diff --git a/include/mbedtls/hkdf.h b/include/mbedtls/hkdf.h
index a8db554..07ffe83 100644
--- a/include/mbedtls/hkdf.h
+++ b/include/mbedtls/hkdf.h
@@ -7,7 +7,7 @@
  *          specified by RFC 5869.
  */
 /*
- *  Copyright (C) 2016-2019, ARM Limited, All Rights Reserved
+ *  Copyright The Mbed TLS Contributors
  *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
  *
  *  This file is provided under the Apache License 2.0, or the
@@ -48,8 +48,6 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  *  **********
- *
- *  This file is part of mbed TLS (https://tls.mbed.org)
  */
 #ifndef MBEDTLS_HKDF_H
 #define MBEDTLS_HKDF_H