[Plugin: Jetpack by WordPress.com] Jetpack StumbleUpon share opens in same window

I just installed Jetpack 1.7 on the product pages for my friend’s site (http://omgfriends.com/products/sgt-peepers/) and while the Facebook, Twitter, and Pinterest shares are all opening in a new window, the StumbleUpon share opens in the same window.

I searched for an answer to how to fix this so the StumbleUpon share button opens in a new window, but couldn’t find anything. Little help?

Thanks!

http://wordpress.org/extend/plugins/jetpack/