Canada’s Amaya Gaming says PokerStars’ former owners have rejected responsibility for the $870m judgment the Commonwealth of Kentucky was awarded shortly before Christmas.

On Monday, Amaya announced that it had filed a notice of appeal of that $870m judgment, which relates to PokerStars’ dealings with Kentucky customers in the period following the 2006 passage of the Unlawful Internet Gambling Enforcement Act (UIGEA) and Stars’ forced exit from the US market following the 2011 Black Friday indictments.

Franklin Circuit Court Judge Thomas Wingate originally awarded Kentucky’s state government $290m in damages in November, only to treble that award the following month, as allowed by the centuries-old statute under which the state filed its claim.

At the time, Amaya announced it would seek to offload any damages on Isai and Mark Scheinberg, from whom Amaya purchased PokerStars’ parent company the Rational Group in 2014. Amaya now says it filed such a claim with the Scheinbergs in late January, seeking indemnification of the judgment in accordance with the 2014 sale agreement.