Sony has been sued for adding a clause to the PlayStation Network’s terms-of-service that prohibits gamers from suing Sony whenever something goes wrong with the network.

Sony got the idea for this clause after it was sued by gamers earlier this year when the PlayStation Network (PSN) was hacked and went down for six weeks.

After Sony added the clause that prohibited gamers from suing to the PSN terms of service, Electronic Arts and Microsoft followed suit.

For Sony, the clause meant that if anything went wrong with the online services, the company couldn’t be held responsible. Gamers could opt out of the “don’t sue” clause, but they had only 30 days to do so.

An unnamed Northern California gamer has filed a class action suit against Sony for unfair business practices. Sony hasn’t commented yet.