diff --git a/tools/resources/optimize-png-files.sh b/tools/resources/optimize-png-files.sh
index 9c223929c132bd..eee5c41fb1fe4c 100755
--- a/tools/resources/optimize-png-files.sh
+++ b/tools/resources/optimize-png-files.sh
@@ -1,4 +1,4 @@
-#!/bin/bash -i
+#!/bin/bash
 # Copyright 2013 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.