How can i exclude one of my categories from being called up?

I am using the following code to call up my categories to my top menu<?php wp_list_categories('sort_column=menu_order&depth=1&title_li=','</li>'); ?>
i then used the following code to hide one category in my side menu <?php wp_list_cats('exclude=1'); ?> but it doesnt hide the code from my top menu, is there a way i can use the last code i posted in my header.php file in conjunction with the first code i posted to hide one of the categories in the top menu as well?

thank you!