diff --git a/include/linux/idr.h b/include/linux/idr.h
index 60daf34b625d..ee7abae143d3 100644
--- a/include/linux/idr.h
+++ b/include/linux/idr.h
@@ -1,9 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * include/linux/idr.h
  * 
  * 2002-10-18  written by Jim Houston jim.houston@ccur.com
  *	Copyright (C) 2002 by Concurrent Computer Corporation
- *	Distributed under the GNU GPL license version 2.
  *
  * Small id to pointer translation service avoiding fixed sized
  * tables.