A Swiss legislator claims he was offered a seat on a casino’s board of directors in what he viewed as a bid to sway his vote on the country’s online gambling legislation.

On Friday, Swiss media outlet Tages Anzeiger reported that parliamentarian Marcel Dobler had received an offer of a seat on the board of directors of one of the country’s land-based casinos. Dobler declined to specify the casino’s identity, but claimed the offer was intended “to prevent me from engaging in the law.”

A few weeks before the offer was made, Dobler, who represents the Free Democratic Party (FDP) in the National Council, had voted against the country’s controversial new online gambling law. The law will restrict online gambling to the country’s casino operators and state lotteries, while requiring local internet service providers to block the domains of internationally licensed gambling sites.

However, the FDP’s youth league succeeded in garnering a sufficient number of petition signatures to require a referendum on the online gambling law. The referendum will be held on June 10 and both sides of the argument are lobbying hard to see their side prevail.