diff --git a/osbase/logtree/unraw/unraw.go b/osbase/logtree/unraw/unraw.go
index 88ab9d1..6f84e5a 100644
--- a/osbase/logtree/unraw/unraw.go
+++ b/osbase/logtree/unraw/unraw.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
 // Package unraw implements a facility to convert raw logs from external sources
 // into leveled logs.
 //