Comedienne Margaret Cho has filed for divorce from her artist husband Al Ridenour, PEOPLE can confirm.
Cho – who announced that she and Ridenour were separating in December last year after 11 years of marriage – filed on Wednesday in Los Angeles, California.
In divorce papers obtained by PEOPLE Cho, 46, states that she and Ridenour, 54, have been separated since September last year and cited “irreconcilable differences” under their legal grounds of separation.
A spokesperson for Cho declined to comment on the news.
Speaking on talk show The Real in 2013, Cho revealed that her marriage to Ridenour was an open one.
“I’m married to a man but I’m bisexual so I like both. We got together because …we both have this [idea], ‘I just don’t want to have sex with the same person my whole life. That’s just gross,'” she joked.
The couple have no children together.