category listing problem

Hi, my code for my categories to display is as follows:

<h4>Categories</h4>
				<ul>
					<li><?php wp_list_categories('title_li=&show_count=1'); ?></li>
				</ul>

when it outputs it ends up like this:

<h4>Categories</h4>
<ul>
<li> </li>
<li class="cat-item cat-item-7">
</li>
<li class="cat-item cat-item-10">
</li>
<li class="cat-item cat-item-1">
</li>
<li class="cat-item cat-item-9">
</li>
<li class="cat-item cat-item-8">
</li>
</ul>

how do I make it not have a blank li tag?