Chicagoland is expanding - on television at least.

A fourth installment of Dick Wolf's Windy City-based shows has gotten the official go-ahead at NBC, TVGuide.com has confirmed. Chicago Law (working title) will join Chicago Fire, Chicago P.D. and Chicago Med.

"The Chicago universe will continue to grow as we are in active development on Chicago Law (working title)," NBC entertainment president Jennifer Salke said in a statement Thursday.

Wolf himself teased a potential fourth show at the Television Critics Association winter previews earlier this month. There's currently no word on when Chicago Law would premiere, or whether it would be introduced via a backdoor pilot, as Chicago Med was last season.

Are you looking forward to Chicago Law?