diff --git a/poky/documentation/kernel-dev/kernel-dev-concepts-appx.rst b/poky/documentation/kernel-dev/kernel-dev-concepts-appx.rst
index 04cb117..5b6ebef 100644
--- a/poky/documentation/kernel-dev/kernel-dev-concepts-appx.rst
+++ b/poky/documentation/kernel-dev/kernel-dev-concepts-appx.rst
@@ -1,4 +1,4 @@
-.. SPDX-License-Identifier: CC-BY-2.0-UK
+.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
 
 ************************
 Advanced Kernel Concepts