Olivier Martinez: Halle & I Are Expecting a Son

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Halle Berry's daughter Nahla will soon have a baby brother to play with!

On Wednesday, the 46-year-old actress' fiancé, Olivier Martinez, revealed that the couple's baby on the way will be a boy.

Related: Halle Berry Calls Pregnancy 'A Big Surprise'

"My son will be an American," Martinez told People while fielding questions on the red carpet of the Champs-Elysées Film Festival in Paris, where he is serving as 2013's honorary president.

The bouncing baby boy is expected to arrive sometime this fall.

Related: Oliver Martinez Reveals He's Engaged to Halle Berry

Berry became engaged to Martinez about a year ago and has a five-year-old daughter, Nahla, with her ex-boyfriend, Gabriel Aubry.