Elon Musk lost a legal battle over unpaid severance pay to a former Twitter employee who was fired when Musk took over the social media platform in 2022, according to a memo obtained by Bloomberg.

Two years ago, Musk bought Twitter for $44 billion and quickly fired more than half of its workforce, a move that prompted complaints from more than 2,000 former employees who said they were underpaid for severance.

Friday’s litigation victory could set a precedent for thousands of former employees who file similar arbitration complaints. “The arbitrator awarded our client the full severance package,” attorney Shannon Liss-Riordan said in a memo Monday.

Liss-Riordan declined to comment or to release the arbitrator’s written decision.