diff --git a/src/array.h b/src/array.h
index 05f26bd..45e83aa 100644
--- a/src/array.h
+++ b/src/array.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later */
 #ifndef LIBPLDM_SRC_ARRAY_H
 #define LIBPLDM_SRC_ARRAY_H