diff --git a/cloud/shepherd/manager/control_loop.go b/cloud/shepherd/manager/control_loop.go
index 3e5c832..138b6cb 100644
--- a/cloud/shepherd/manager/control_loop.go
+++ b/cloud/shepherd/manager/control_loop.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package manager
 
 import (