diff --git a/CMakeLists.txt b/CMakeLists.txt
index 487b6a0..c69f237 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,8 @@
 
+# Copyright 2018 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.
+
 # Notes:
 #
 # The code in gofrontend depends on functions from GMP, MPC, and MPFR;
diff --git a/LICENSE b/LICENSE
index 32017f8..87009fa 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2017 The Go Authors. All rights reserved.
+Copyright (c) 2017-2018 The Go Authors. All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are