Lily Rabe Expecting Third Baby with Hamish Linklater

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There's another little one on the way for Lily Rabe!

A rep for the actress confirms to PEOPLE that she is expecting her third baby with her longtime partner, actor Hamish Linklater.

The American Horror Story: Double Feature star cradled her bump in a black Carolina Herrera dress while attending the opening gala for the Academy Museum of Motion Pictures in Los Angeles on Saturday evening.

The baby will be the fourth for Linklater, 44, who also has a daughter named Lucinda Rose from a previous relationship.

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Rabe welcomed her first child — a daughter — with her actor beau in 2017. She announced her baby girl's birth in honor of International Women's Day in March of that year by posting a photo of her snuggling up close to the newborn.

"Happy International Women's Day. Today. Tomorrow. Every day. Girls are magic," she wrote alongside the sweet shot.

The couple welcomed their second child together in June 2020. Rabe teased the baby news (and simultaneously announced her pregnancy) on Instagram that August, posting a photo of herself with a visible baby bump.

"Looking back at a day in May. #wearamask #wearadamnmask #tbt," Rabe wrote in the caption.

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Rabe and Linklater, who currently stars in Midnight Mass, have been together for years and worked together in the past on stage and in film.

Rabe next stars opposite Ben Affleck in the George Clooney-directed film, The Tender Bar.