Notification badge on settings app

[authentic103]

My wife inherited my iPhone 5 and since restoring from her 4s backup there's a 1 badge on the settings app like there's a software update available, but it's up to date with iOS 7 and I can't figure out a way to get rid of it. Any ideas?

 

[Just_Me_D]

Try rebooting or connecting it to your computer and then initiating the computer's iTunes app.