diff --git a/osbase/efivarfs/variables.go b/osbase/efivarfs/variables.go
index fe59324..01ed9f9 100644
--- a/osbase/efivarfs/variables.go
+++ b/osbase/efivarfs/variables.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 package efivarfs
 
 import (