Cleveland’s Major League Baseball team, long known as the Indians, has been hit with a trademark lawsuit over its plans to change its name to the Cleveland Guardians in the upcoming season.

A non-profit, amateur co-ed roller derby team based in Parma, Ohio, just south of the city, filed suit in federal court Wednesday claiming that it has used the “Cleveland Guardians” name since 2013 and that it holds a common law trademark to the name.