January Jones and Will Forte have sadly called it quits.

The couple ended their relationship in August after dating for five months, a source confirmed to Us Weekly on Monday, Sept. 21.

january jones and will forte

January and Will on The Last Man on Earth.

The Mad Men star, 37, and Will, 45, reportedly first became an item in April after meeting on the set of their post-apocalyptic series, The Last Man on Earth.

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Though January has never been married, she is a mom to a four-year-old son, Xander. The actress — who has kept the identity of her son’s father private since his birth — has previously dated Jason Sudeikis, Ashton Kutcher and Josh Groban. Will, who has also never married, has been linked to Sarah Chalke.