diff --git a/agent/dns/router_response.go b/agent/dns/router_response.go
index 002762300dd1..d2000745c828 100644
--- a/agent/dns/router_response.go
+++ b/agent/dns/router_response.go
@@ -1,3 +1,5 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: BUSL-1.1
 package dns
 
 import (