diff --git a/programs/psa/crypto_examples.c b/programs/psa/crypto_examples.c
index f156b7b..88e34d1 100644
--- a/programs/psa/crypto_examples.c
+++ b/programs/psa/crypto_examples.c
@@ -1,3 +1,9 @@
+/*
+ *  Copyright (C) 2018-2019, ARM Limited, All Rights Reserved
+ *
+ *  This file is part of mbed TLS (https://tls.mbed.org)
+ */
+
 #include "psa/crypto.h"
 #include <string.h>
 #include <stdio.h>