iTunes won't let me use backup
Today I got the 6s, and I'm trying to restore from a backup of my 5s that I did earlier today. However when it gives me the options for backups I don't see the one I'm looking for. When I plug in the 5s it says that the last backup from it was today and when I go to preferences the back up shows there. Is there anyway I can use the back up? Thanks.
iPhone 6s, iOS 9.1