MIDLAND, MI -- A Midland County woman who sued Planet Fitness for its transgender-friendly locker room policy is now taking her case to Michigan's highest court.

Yvette Cormier's lawsuit is based on her seeing a transgender person in the locker room at the Planet Fitness in Midland on Feb. 28, 2015.

Planet Fitness transgender policy case 10 Gallery: Planet Fitness transgender policy case

Carlotta Sklodowska later came forward, saying she was the transgender woman in question.

Planet Fitness canceled Cormier's membership after she complained to fellow gym members over several days.

Cormier then filed a lawsuit, alleging violations of the Elliott-Larsen Civil Rights Act, breach of contract and other claims.

The Elliott-Larsen Civil Rights Act prohibits discrimination in Michigan on the basis of "religion, race, color, national origin, age, sex, height, weight, familial status, or marital status" in employment, housing, education and access to public accommodations.

Midland County Circuit Court Judge Michael J. Beale dismissed the lawsuit on Jan 4, 2016. Cormier's attorney, David A. Kallman, appealed the judge's decision to the Michigan Court of Appeals 24 days later.

On June 1 this year, the Court of Appeals issued a ruling affirming Beale's ruling.

Kallman believes the Court of Appeals decision was not correct and filed for leave to appeal to the Michigan Supreme Court on Wednesday, July 12.

"We believe the Court of Appeals decision was erroneous because it stated that a business policy (Planet Fitness' judgment free zone policy) itself could not be the basis for an Elliott-Larsen Act claim," Kallman said in an email.

"Further, (Planet Fitness') actions against Mrs. Cormier clearly violated her right to privacy by allowing a man in the women's locker room/shower area and violated the Michigan Consumer Protection Act."