diff --git a/cloud/apigw/model/migrations.go b/cloud/apigw/model/migrations.go
index 2c07768..95b5dcf 100644
--- a/cloud/apigw/model/migrations.go
+++ b/cloud/apigw/model/migrations.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package model
 
 import (