DETROIT (AP) — Operators of Las Vegas-style charitable gambling events are claiming a “significant win” after a judge barred Michigan from enforcing rules that significantly restrict the activities.

Michigan Court of Claims Judge Pat Donofrio issued a permanent injunction Thursday against enforcing the May 14 order by the Michigan Gaming Control Board. Donofrio’s decision confirms a temporary restraining order he issued May 30. The board said it sought to assure that gambling operators don’t exploit charities for their own profit.