diff --git a/script/next-version.go b/script/next-version.go
index b2af3fe22..0e9e7ad50 100644
--- a/script/next-version.go
+++ b/script/next-version.go
@@ -1,3 +1,9 @@
+// Copyright (C) 2025 The Syncthing Authors.
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this file,
+// You can obtain one at https://mozilla.org/MPL/2.0/.
+
 //go:build ignore
 // +build ignore