‘Related Post’ Title Missing

Hi, I’m using the PHP shortcode below for the page I want to display the related posts on. It works fine listing the posts, but above them no where does it say: Related Posts

Since I’m using the php shortcode instead of the General Settings – Post Type Display section (where it let’s you enter the headline text), where can I add in the headline text for the unique page that I’m putting the related posts on (it’s for courses, not a blog so the page I want to list it on doesn’t show up in the General Settings)? Thanks!

<?php echo do_shortcode( ‘[related_post]’ ); ?>