Using Views 3 and Drupal 7.

I have created a page display with a single exposed filter for taxonomy term id.  There is a feed display attached to this view.  When I click on the link for the feed the filter settings e.g. ?tid=2 is passed onto the feed's path e.g. /blog.xml?tid=2

Is there a simple way for me to allow the feed display to be filtered by this argument?  I tried using a contextual filter (argument), but it appears to be looking for /2 and not for ?tid=2

Thanks in advance,