diff --git a/build.rs b/build.rs
index 4536575..5163b7e 100644
--- a/build.rs
+++ b/build.rs
@@ -1,3 +1,8 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+ * Copyright (c) 2024, Richard Acayan. All rights reserved.
+ */
+
 use std::env;
 use std::path::PathBuf;