diff --git a/devices/common_patches/gd32f425.yaml b/devices/common_patches/gd32f425.yaml
index 1474f62b2..9e88115d4 100644
--- a/devices/common_patches/gd32f425.yaml
+++ b/devices/common_patches/gd32f425.yaml
@@ -1,3 +1,7 @@
+# Copyright 2024 The gd32-rs authors.
+#
+# SPDX-License-Identifier: MIT OR Apache-2.0
+
 RCU:
   _modify:
     CTL: