Fix typo (thanks @garry-cairns) yesodweb/yesod#960
Fix typo (thanks @garry-cairns) yesodweb/yesod#960

mlitchard/lambdaweb.com-content,maxigit/yesodweb.com-content,wolftune/yesodweb.com-content,maxigit/yesodweb.com-content,wolftune/yesodweb.com-content