diff --git a/include/json_writer.h b/include/json_writer.h
index 1516aafb..45459fa2 100644
--- a/include/json_writer.h
+++ b/include/json_writer.h
@@ -1,14 +1,10 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) */
 /*
  * Simple streaming JSON writer
  *
  * This takes care of the annoying bits of JSON syntax like the commas
  * after elements
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
  * Authors:	Stephen Hemminger <stephen@networkplumber.org>
  */
 
diff --git a/lib/json_writer.c b/lib/json_writer.c
index f3eeaf7b..cddd4dca 100644
--- a/lib/json_writer.c
+++ b/lib/json_writer.c
@@ -1,14 +1,10 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) */
 /*
  * Simple streaming JSON writer
  *
  * This takes care of the annoying bits of JSON syntax like the commas
  * after elements
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
  * Authors:	Stephen Hemminger <stephen@networkplumber.org>
  */