Williams-Sonoma’s lawsuit accusing Wayfair of copying its designs has been pared down, but a federal judge in Massachusetts said the case may continue on a single state law claim for unfair competition.

In a Jan. 24 opinion, U.S. District Judge Patti Saris of the District of Massachusetts tossed out a federal Lanham Act claim and two California state law claims for unfair competition and false advertising, but allowed Williams-Sonoma to proceed with its unfair competition claim under Massachusetts state law.