diff --git a/test/fixedbugs/bug133.go b/test/fixedbugs/bug133.go
index 2beeb07..a6baac2 100644
--- a/test/fixedbugs/bug133.go
+++ b/test/fixedbugs/bug133.go
@@ -1,5 +1,8 @@
 // $G $D/$F.dir/bug0.go && $G $D/$F.dir/bug1.go && errchk $G $D/$F.dir/bug2.go
 
+// NOTE: This test is not run by 'run.go' and so not run by all.bash.
+// To run this test you must use the ./run shell script.
+
 // Copyright 2009 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.