diff --git a/src/pkg/exp/types/types.go b/src/pkg/exp/types/types.go
index 3aa896892e..85d244cf04 100644
--- a/src/pkg/exp/types/types.go
+++ b/src/pkg/exp/types/types.go
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// PACKAGE UNDER CONSTRUCTION. ANY AND ALL PARTS MAY CHANGE.
-// Package types declares the types used to represent Go types.
+// Package types declares the types used to represent Go types
+// (UNDER CONSTRUCTION). ANY AND ALL PARTS MAY CHANGE.
 //
 package types