The order of JS Files is Reversed in all-classes.js

My index.html looks like:

Code:

<!-- <x-compile> -->
    <!-- <x-bootstrap> -->
    <script src="ext/ext-all-debug.js"></script>
    <script src="bootstrap.js"></script>
    <!-- </x-bootstrap> -->

<script src="js/external-lib.js"></script>
<script src="app/app.js"></script>

<!-- </x-compile> -->

My ExtJS application depends on external-lib.js,

so I hope external-lib.js could be at the beginning of all-classes.js.

However, the order of JS files is reversed. The file external-lib.js is at end of all-classes.js.

How could I fix it?

PS: I'm using Sencha Cmd v4.0.0.203 & ExtJS 4.1.1a.