I goofed and I don't know how to fix it.

I have a little travel blog called "The Seven Day Weekend." It is for retired people whose weekends always last all week. I got the name right, but the URL has a typo. See if you can spot it:

http://sevemdayweekend.blogspot.com/

So if anybody tries typing it in, they won't ever get there. Clicking a link works, and so does copy and paste. But I would still like to correct it without redoing the entire blog. Any ideas?
Howard