It's a boy for Jason Priestley!

The former Beverly Hills, 90210 star and his wife, Naomi Lowde-Priestley, welcomed their second child Thursday in L.A., his rep told the Associated Press.

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The couple -- who have been married for four years -- also have a daughter, Ava Veronica, 2.

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"I love being a father. It's totally ineffable," he told ABC News Now shortly after Ava's birth. "I love changing diapers. I love the whole thing -- I'm all in."

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Priestley, 39, and his wife announced that they were expecting another baby to in April.