One of the biggest winners in the Amazon deal just had the rug pulled out from under it now that the deal collapsed.

Long Island City-based plastics manufacturer-turned-real-estate moguls Plaxall was set to sell or lease some 295,000 square feet of land to Amazon for the HQ2 project — which the online retail behemoth 86’ed on Thursday.

In addition to mountains of Amazon real estate money the company was likely to rake in, Plaxall was set to get a free rezoning out of the deal that would have let it build a planned mixed-use development on land adjacent to the Amazon campus.

“We’re extremely disappointed by this decision,” Plaxall managing directors Paula Kirby, Tony Pfohl and Matthew Quigley said in a statement.

“Since our grandfather opened Plaxall’s doors on the waterfront seven decades ago, our family has believed in the overwhelming promise of Anable Basin and Long Island City as centers of productivity and innovation. We continue to believe that today.”

The company would not comment on whether it will move forward with development plans now that it would need to get city approval for the rezoning.