A group of about 20 quality assurance workers at the video game company met the requirements to hold a union election according to a federal labor board.
The National Labor Relations Board's regional director disagreed with the claim that the effort to unionize should be dismissed because the company recently spread its quality assurance testers across its Raven gaming studio.
There was no evidence that Q.A. testers were being eliminated or that their role would change.
She disagreed with the company's claim that the workers in the studio would have to vote on a union.
Ballots will be counted on May 23 when the workers vote on whether to unionize and be represented by the Communications Workers of America.
More than 60 workers walked out of work in December, protesting the end of the contracts of a dozen temporary quality assurance workers, which they said felt abrupt and unfair.
The quality assurance workers and the Communications Workers of America said that the National Labor Relations Board rejected the attempts of the management to undermine their efforts to form a union. We are looking forward to voting and winning our union.
The company was disappointed that a decision that could have a significant impact on the future of the studio would be made by a small group of employees.