diff --git a/plan9/mksysnum_plan9.sh b/plan9/mksysnum_plan9.sh
index d798930b..3c3ab058 100755
--- a/plan9/mksysnum_plan9.sh
+++ b/plan9/mksysnum_plan9.sh
@@ -1,8 +1,6 @@
 #!/bin/sh
 # 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.# 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.
 
 COMMAND="mksysnum_plan9.sh $@"