rss2_url variable comes from?

when clicking on the rss image for my site, it goes to my sites homepage

http://www.alternapop.com and not the feed link

<link rel=”alternate” type=”application/rss+xml” title=”RSS 2.0″ href=”<?php bloginfo(‘rss2_url’); ?>” />

i’ve poked around the code and the options via the interface and am not sure where this variable ‘rss2_url’ is coming from. i could hack the link directly but would rather do it properly.
thanks!