The Omaha Tribe is asking the Nebraska Supreme Court to restore its sovereign immunity against a lawsuit over payment for work on its casinos, racetrack and other facilities.

The tribe faces a lawsuit from Omaha-based contractor StoreVisions Inc. for breach of contract. The lawsuit says the tribe has not paid for building work.

But the tribe argues it is immune from lawsuits through the sovereign immunity granted to federally-recognized tribes. In court documents, the tribe says a waiver of sovereign immunity signed by the tribal chairman and vice chairman for StoreVisions is invalid.

A district judge disagreed, ruling the waiver is valid and that the lawsuit can proceed. The tribe appealed, and the lawsuit has been put on hold until the high court rules. Arguments are scheduled for Jan. 7.