diff --git a/osbase/erofs/defs.go b/osbase/erofs/defs.go
index 85898bf..14fccda 100644
--- a/osbase/erofs/defs.go
+++ b/osbase/erofs/defs.go
@@ -1,18 +1,5 @@
-// Copyright 2020 The Monogon Project Authors.
-//
+// Copyright The Monogon Project Authors.
 // SPDX-License-Identifier: Apache-2.0
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
 
 package erofs