Pro Sites Signup Page

I am using the Roots theme and on my wp-signup.php page I am getting the following error at the header/footer

"Notice: Theme without header.php is deprecated since version 3.0 with no alternative available. Please include a header.php template in your theme."

I was wondering if you had a simple work-around for this. I've run into this with WooCommerce before and their work-around was to create a file called woocommerce.php in the theme and add <?php woocommerce_content(); ?> to it.

Thoughts?
Thanks in advance!