diff --git a/include/pam_authenticate.hpp b/include/pam_authenticate.hpp
index 7e970f0..7afe952 100644
--- a/include/pam_authenticate.hpp
+++ b/include/pam_authenticate.hpp
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright OpenBMC Authors
 #pragma once
 
 #include <security/pam_appl.h>