diff --git a/tests/test_microlzma.c b/tests/test_microlzma.c
index 0fba9192..43594a0a 100644
--- a/tests/test_microlzma.c
+++ b/tests/test_microlzma.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: 0BSD
+
 ///////////////////////////////////////////////////////////////////////////////
 //
 /// \file       test_microlzma.c
@@ -5,9 +7,6 @@
 //
 //  Author:     Jia Tan
 //
-//  This file has been put into the public domain.
-//  You can do whatever you want with this file.
-//
 ///////////////////////////////////////////////////////////////////////////////
 
 #include "tests.h"