When Facebook changed its name to Meta in October, there were a few concerns that the company was planning to dominate the nascent metaverse — but there’s one aggrieved party that’s only now going public.

An installation-art company called META (or Meta.is) announced Tuesday that it will be suing Meta (or Facebook) for trademark violation, alleging that Zuckerberg’s name change violated the smaller company’s established brand.

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“On October 28, 2021, Facebook seized our META mark and name, which we put our blood, sweat, and tears into building for over twelve years,” reads a post on the smaller company’s site. “Today, after eight months of trying to negotiate with Facebook in good faith to no avail, we were left with no choice but to file a lawsuit against them.”

Read more: The Verge