diff --git a/mod_for_test_scripts/test_setup.sh b/mod_for_test_scripts/test_setup.sh
index 93560c6824..d80eac7609 100755
--- a/mod_for_test_scripts/test_setup.sh
+++ b/mod_for_test_scripts/test_setup.sh
@@ -1,9 +1,11 @@
 #!/bin/bash
 
-# Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
+# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+set -e
+
 for SCRIPT in \
     ${GCLIENT_ROOT}/src/scripts/mod_for_test_scripts/[0-9][0-9][0-9]*[!$~]
 do