diff --git a/build/sanitize-mac-build-log.sed b/build/sanitize-mac-build-log.sed
old mode 100755
new mode 100644
index 3894e4ceef5aa2..274e2822fa0612
--- a/build/sanitize-mac-build-log.sed
+++ b/build/sanitize-mac-build-log.sed
@@ -1,4 +1,4 @@
-#!/bin/sed -f
+#!/bin/echo Use sanitize-mac-build-log.sh or sed -f 
 
 # Copyright (c) 2010 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
diff --git a/build/sanitize-mac-build-log.sh b/build/sanitize-mac-build-log.sh
new file mode 100755
index 00000000000000..dc743fabb51f92
--- /dev/null
+++ b/build/sanitize-mac-build-log.sh
@@ -0,0 +1,6 @@
+#!/bin/sh
+# Copyright (c) 2010 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+sed -f `dirname "${0}"`/`basename "${0}" sh`sed
+
diff --git a/tools/emacs/trybot.el b/tools/emacs/trybot.el
index 6bc966fff711cc..0352ed5568fc28 100644
--- a/tools/emacs/trybot.el
+++ b/tools/emacs/trybot.el
@@ -107,7 +107,7 @@
                          (when (eq type-hint 'mac)
                            ; Pipe it through the output shortener.
                            (concat " | " (get-chrome-root)
-                                   "build/sanitize-mac-build-log.sed")))))
+                                   "build/sanitize-mac-build-log.sh")))))
 
     ; Start up the subprocess.
     (let* ((coding-system-for-read 'utf-8-dos)