The workers gathered outside an office building in downtown Syracuse, New York, on Wednesday were not happy. Sporting red union T-shirts and holding signs reading “You can’t punish us for being pregnant” and “When we fight, we win,” they were rallying to support a colleague. The building is home to TCGplayer, an eBay subsidiary that is the largest online marketplace for card games, comics, and collectible trading cards (think Pokémon or Magic: The Gathering), and the picket’s attendees were some of its employees, the roughly 250 people whose job is to authenticate, sort, and ship the collectibles.

The workers were gathered to protest what they say is a pattern of pregnancy discrimination against one of their own. According to the Campaign to Organize Digital Employees–Communications Workers of America (CODE-CWA), which represents the workers, Megan Wheeler, a TCGplayer receiving generalist, has been penalized by management for issues related to her pregnancy. Despite supplying a note from her doctor, Wheeler was denied a request for accommodations, including intermittent leave to manage her morning sickness. The union says she instead received warnings for tardiness and was placed on final notice after missing work to seek emergency medical attention for symptoms of a miscarriage. CODE-CWA filed an unfair labor practice (ULP) charge with the NLRB this week over management’s treatment of Wheeler.

“I felt like I was alone with this until I shared my story with members of the union, and it’s really inspiring that workers can have each other’s back when management fails us,” Wheeler said in a statement.