Bruce Willis has become a father for the fourth time.

The 57-year-old “Die Hard” actor, who has daughters Rumer, 23, Scout, 20, and Tallulah, 18, with ex-wife Demi Moore, has welcomed a fourth daughter with wife Emma Heming.

Baby Mabel Ray Willis was born yesterday on April Fool’s Day, weighing in at 9lb 1oz.

Bruce previously said he was indifferent on having children with Emma, 33, who he married in 2009.

Willis claimed, “I’d like to have a thousand more children, or zero more children. It doesn’t matter. Emma makes me feel great.”

Well, it appears 56-year-old Bruce Willis’ sperm don’t “Die Hard”! The tough-guy and his wife Emma Heming are expecting their first child together.

Bruce, who already has three daughters from his marriage to actress Demi Moore, is said to be thrilled with the baby news.

Emma hasn’t revealed when the baby is due, but insiders reveal she is definitely showing. For a first baby, you could “guesstimate” she is around four months along if she has a slight baby bump.