Change Permalink

How do I change the permalink for my home page. My site map shows it as http://familyancestree.com/untitled-6 but my dashboard-edit page just shows http://familyancestree.com/. All of my other pages allow me to edit the permalink but the home page. My site has not been crawled yet so I would like to get his changed so I don't have to create a 301 redirect. Thanks for your help.