Staff at the Holy Donut on Park Avenue in Portland have successfully voted to unionize.

According to a social media post Tuesday on the Instagram account @holydonutworkers, they voted to be represented by the machinsts union.

The workers had complained they faced “low wages; deceitful communication from ownership and management; unsafe and unhealthy conditions; (and) unfair labor practices.” Management at the company had denied those claims.

Employees at the Park Avenue store, located at 194 Park Ave. and the company’s original location, have voted to join forces with the International Association of Machinists and Aerospace Workers.

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A post shared by Holy Donut Workers – Park Ave – IAM Union (@holydonutworkers)

Staff at the three other Holy Donut locations — there’s a second store in Portland (on Commercial Street) and one each in Brunswick and Scarborough — are not part of this organizing effort, although union organizer Justin Gross said he hopes they will ultimately join, as he said they face the same problems as the Park Avenue store. He blamed a “union avoidance consultant” hired by management for discouraging the staff at the other locations.

The collective bargaining unit at Park Street has eight members. When the Park Avenue store staffs up for summer, Gross expects its ranks to swell to 12 to 14 people. Next, the unit will vote on a shop steward, pick a negotiating team and decide what they want, Gross said, before next month beginning negotiations on a first contract.

On Instagram, Gross and fellow organizer Lauren Gamble said the team celebrated with pizza at Flatbread. Gamble was previously involved in organizing a union at Coffee by Design.

Holy Donut CEO and co-owner Jeff Buckwalter could not be reached for comment.