A lawyer with the same name as his attorney father will have to stop promoting his law firm—at least for now.

A South Carolina judge has granted a preliminary injunction preventing George T. Sink Jr. from marketing his law firm, George Sink II Law Firm. Sink Jr. is being sued in district court by his father, George T. Sink Sr., who claims that the name of his son’s firm violates the trademark of his own firm, George Sink P.A. Injury Lawyers.