diff --git a/tests/test-utils.h b/tests/test-utils.h
index b565876..94f43b8 100644
--- a/tests/test-utils.h
+++ b/tests/test-utils.h
@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later */
+
 #ifndef _MCTP_TESTS_TEST_UTILS_H
 #define _MCTP_TESTS_TEST_UTILS_H