diff --git a/keyboards/nasu/keymaps/mariocs/config.h b/keyboards/nasu/keymaps/mariocs/config.h
index edf600fb6980..18b30b7859da 100644
--- a/keyboards/nasu/keymaps/mariocs/config.h
+++ b/keyboards/nasu/keymaps/mariocs/config.h
@@ -1,3 +1,5 @@
+// Copyright 2021 Mario Cadenas (@MarioCadenas)
+// SPDX-License-Identifier: GPL-2.0-or-later
 #pragma once
 
 #define SPLIT_LED_STATE_ENABLE