diff --git a/Documentation/dev-tools/ubsan.rst b/Documentation/dev-tools/ubsan.rst
index 1be6618e232d20a5210026ee392fb78edb882c55..2de7c63415da0ee674ad3251b7f0e027c264e26e 100644
--- a/Documentation/dev-tools/ubsan.rst
+++ b/Documentation/dev-tools/ubsan.rst
@@ -1,5 +1,7 @@
-The Undefined Behavior Sanitizer - UBSAN
-========================================
+.. SPDX-License-Identifier: GPL-2.0
+
+Undefined Behavior Sanitizer - UBSAN
+====================================
 
 UBSAN is a runtime undefined behaviour checker.