The National Basketball Association (NBA) and Major League Baseball (MLB) aren’t happy with the latest sports betting measure in Iowa.

The Des Moines Register reported that the NBA and MLB opposed a bill seeking to legalize sports betting in Iowa in the event the Supreme Court declares the 1992 Professional and Amateur Sports Protection Act (PASPA) unconstitutional.

The major sports leagues aren’t actually opposing the bid of the state to legalize sports betting, per se. The problem lies with so-called “integrity fee” provision of the bill.

The NBA and the MLB both pointed out that the House Study Bill 592 fell short on safety nets that will protect the integrity of sports betting. Reading between lines, the Iowa Gaming Association said that the NBA and the MLB are demanding for major league sports fees.