diff --git a/poky/meta/lib/oe/recipeutils.py b/poky/meta/lib/oe/recipeutils.py
index 4ca200d..1e5b9a4 100644
--- a/poky/meta/lib/oe/recipeutils.py
+++ b/poky/meta/lib/oe/recipeutils.py
@@ -4,6 +4,8 @@
 #
 # Copyright (C) 2013-2017 Intel Corporation
 #
+# SPDX-License-Identifier: GPL-2.0-only
+#
 
 import sys
 import os