diff --git a/src/runtime/signal_windows_test.go b/src/runtime/signal_windows_test.go
index add23cd292..731f22da61 100644
--- a/src/runtime/signal_windows_test.go
+++ b/src/runtime/signal_windows_test.go
@@ -1,4 +1,6 @@
-//go:build windows
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
 
 package runtime_test