Rosamund Pike welcomes second child with Robie Uniacke

Rosamund Pike has added a second boy to her brood.

The "Gone Girl" star welcomed her second child with longtime boyfriend Robie Uniacke on Tuesday, her rep confirmed to Us Weekly.

Pike, 35, who gave birth at home, is already a mom to the couple's 2-year-old son, Solo. No further details, including the new little one's name, have been released.

In a 2012 interview with Vogue, Pike said of her then-family of three, "It is interesting to break all the rules. I'm not married, I have a baby, and it feels infinitely more right."

It was revealed in June that Pike was expecting. She and Uniacke have been together since 2009.