Using wp_list_comments results in nothing

Hello,

I’m developing a theme, and I’ve only recently been using the latest version of WP (so I’m used to other ways of getting comments).

To my understanding, wp_list_comments() returns a list of echo’ed comments. When I use this function on my default post (Hello world etc), nothing shows up. I can obviously get my comments some other way, but this is odd. Am I missing something?

I basically have:

if(have_comments()) :
wp_list_comments();
endif;

In all it’s basicness.

Thanks.