diff --git a/tools/gpio/gpio-utils.c b/tools/gpio/gpio-utils.c
index cf7e2f3..53470de 100644
--- a/tools/gpio/gpio-utils.c
+++ b/tools/gpio/gpio-utils.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * GPIO tools - helpers library for the GPIO tools
  *
  * Copyright (C) 2015 Linus Walleij
  * Copyright (C) 2016 Bamvor Jian Zhang
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
  */
 
 #include <unistd.h>