diff --git a/src/runtime/race/race_v1_amd64.go b/src/runtime/race/race_v1_amd64.go
index 5bc9ebfc67..b8a20315fd 100644
--- a/src/runtime/race/race_v1_amd64.go
+++ b/src/runtime/race/race_v1_amd64.go
@@ -1,3 +1,7 @@
+// Copyright 2022 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.
+
 //go:build (linux && !amd64.v3) || darwin || freebsd || netbsd || openbsd || windows
 // +build linux,!amd64.v3 darwin freebsd netbsd openbsd windows
 
diff --git a/src/runtime/race/race_v3_amd64.go b/src/runtime/race/race_v3_amd64.go
index 7d2395b907..913bb77f48 100644
--- a/src/runtime/race/race_v3_amd64.go
+++ b/src/runtime/race/race_v3_amd64.go
@@ -1,3 +1,7 @@
+// Copyright 2022 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.
+
 //go:build linux && amd64.v3
 // +build linux,amd64.v3