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Actress Kaley Cuoco Image Credit: AP

A divorce filing by Big Bang Theory star Kaley Cuoco says the actress and her husband of 20 months have a prenuptial agreement.

Cuoco filed for divorce late on Friday in Los Angeles Superior Court citing irreconcilable differences, and her petition was released Monday afternoon.

Cuoco and tennis pro Ryan Sweeting married in a New Year’s Eve ceremony in 2013.

The filing states they signed a prenuptial agreement in November 2013 that will dictate how the divorce is resolved.

The pair has no children together.

The filing states Cuoco and Sweeting separated earlier this month, but it provides no further details about the break-up.

Cuoco’s publicist said on Friday that the couple had mutually agreed to end their marriage.