Full-time dealers at the Wynn Las Vegas Casino have voted 444-149 in favor of joining the Transportation Workers Union of America. The vote, which was supervised by the National Labor Relations Board, came only a few days after casino tycoon Steve Wynn said it was a big mistake to change the tips system.

Last September, the casino management implemented a new tip-sharing plan that allowed supervisors to share in dealers’ tips. According to the dealers, the new system resulted in a 15 to 20 percent cut in their tip income. Facing a general discontent, Wynn made a personal plea to dealers this week and said he had made a big mistake and had not realized it until recently.

In spite of Wynn’s request of a chance to straight things up, almost all of the casino’s 633 full-time dealers voted. “It's huge. You can't even imagine how happy we all are about this,” baccarat dealer Dennis Laux said. “We've taken one of the largest casinos in Nevada and done something that Steve Wynn said we would never accomplish.”

The casino has seven days to challenge the vote. If they don’t, the union will elect a negotiations committee and officers. A revision of the tip agreement is one of the first items on the agenda.