diff --git a/board/syteco/zmx25/Makefile b/board/syteco/zmx25/Makefile
index d5edb48..49b3a8f 100644
--- a/board/syteco/zmx25/Makefile
+++ b/board/syteco/zmx25/Makefile
@@ -1,9 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # (c) 2010 Graf-Syteco, Matthias Weisser
 # <weisserm@arcor.de>
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 obj-y	+= zmx25.o
 obj-y	+= lowlevel_init.o
diff --git a/board/syteco/zmx25/lowlevel_init.S b/board/syteco/zmx25/lowlevel_init.S
index 5eccf09..7df9398 100644
--- a/board/syteco/zmx25/lowlevel_init.S
+++ b/board/syteco/zmx25/lowlevel_init.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2011
  * Matthias Weisser <weisserm@arcor.de>
@@ -7,8 +8,6 @@
  *
  * Based on U-Boot and RedBoot sources for several different i.mx
  * platforms.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <asm/macro.h>
diff --git a/board/syteco/zmx25/zmx25.c b/board/syteco/zmx25/zmx25.c
index 85fda13..d231845 100644
--- a/board/syteco/zmx25/zmx25.c
+++ b/board/syteco/zmx25/zmx25.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (c) 2011 Graf-Syteco, Matthias Weisser
  * <weisserm@arcor.de>
@@ -11,8 +12,6 @@
  *   Copyright (C) 2009 Ilya Yanok <yanok@emcraft.com>
  * And:
  *   RedBoot tx25_misc.c Copyright (C) 2009 Red Hat
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 #include <common.h>
 #include <asm/gpio.h>