diff --git a/include/json_formatters.hpp b/include/json_formatters.hpp
index ae72a08..e074316 100644
--- a/include/json_formatters.hpp
+++ b/include/json_formatters.hpp
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright OpenBMC Authors
 #pragma once
 
 #include <nlohmann/json.hpp>