diff --git a/tests/include/test/helpers.h b/tests/include/test/helpers.h
index 36b9e72..36ec8e6 100644
--- a/tests/include/test/helpers.h
+++ b/tests/include/test/helpers.h
@@ -5,7 +5,8 @@
  *          purpose of testing.
  */
 
-/*  Copyright (C) 2020, ARM Limited, All Rights Reserved
+/*
+ *  Copyright (C) 2020, ARM Limited, All Rights Reserved
  *  SPDX-License-Identifier: Apache-2.0
  *
  *  Licensed under the Apache License, Version 2.0 (the "License"); you may
diff --git a/tests/include/test/macros.h b/tests/include/test/macros.h
index 25f8312..aaf13ad 100644
--- a/tests/include/test/macros.h
+++ b/tests/include/test/macros.h
@@ -4,7 +4,8 @@
  * \brief   This file contains generic macros for the purpose of testing.
  */
 
-/*  Copyright (C) 2020, ARM Limited, All Rights Reserved
+/*
+ *  Copyright (C) 2020, ARM Limited, All Rights Reserved
  *  SPDX-License-Identifier: Apache-2.0
  *
  *  Licensed under the Apache License, Version 2.0 (the "License"); you may
diff --git a/tests/include/test/psa_crypto_helpers.h b/tests/include/test/psa_crypto_helpers.h
index 1dd6084..8cd361f 100644
--- a/tests/include/test/psa_crypto_helpers.h
+++ b/tests/include/test/psa_crypto_helpers.h
@@ -1,7 +1,8 @@
 /*
  * Helper functions for tests that use the PSA Crypto API.
  */
-/*  Copyright (C) 2019, ARM Limited, All Rights Reserved
+/*
+ *  Copyright (C) 2019, ARM Limited, All Rights Reserved
  *  SPDX-License-Identifier: Apache-2.0
  *
  *  Licensed under the Apache License, Version 2.0 (the "License"); you may
diff --git a/tests/include/test/psa_helpers.h b/tests/include/test/psa_helpers.h
index 79f6837..352ae67 100644
--- a/tests/include/test/psa_helpers.h
+++ b/tests/include/test/psa_helpers.h
@@ -1,7 +1,8 @@
 /*
  * Helper functions for tests that use any PSA API.
  */
-/*  Copyright (C) 2019, ARM Limited, All Rights Reserved
+/*
+ *  Copyright (C) 2019, ARM Limited, All Rights Reserved
  *  SPDX-License-Identifier: Apache-2.0
  *
  *  Licensed under the Apache License, Version 2.0 (the "License"); you may
diff --git a/tests/include/test/random.h b/tests/include/test/random.h
index dfdefa6..e085f16 100644
--- a/tests/include/test/random.h
+++ b/tests/include/test/random.h
@@ -5,7 +5,8 @@
  *          random numbers for the purpose of testing.
  */
 
-/*  Copyright (C) 2020, ARM Limited, All Rights Reserved
+/*
+ *  Copyright (C) 2020, ARM Limited, All Rights Reserved
  *  SPDX-License-Identifier: Apache-2.0
  *
  *  Licensed under the Apache License, Version 2.0 (the "License"); you may