Kelli Giddish is officially a mom of two! The Law & Order: SVU star and her husband, Lawrence Faulborn, recently welcomed their second child, as revealed by the proud dad on Instagram this week.

“#thefamilyjustgottwofeetbigger,” Faulborn captioned a black and white photo of the newborn baby’s foot. He posted the photo on Tuesday, November 13, but didn’t specify the birth date or offer any details such as the name and sex of the little one.

Giddish — best known as NYPD Detective Amanda Rollins on NBC’s long-running crime drama — kept her second pregnancy largely out of the spotlight. Many only found out that the 38-year old-was expecting when her SVU costar Mariska Hargitay posted a photo of Giddish baring her baby bump on Instagram one week ago. “#BabyOnTheWay #ComingThisFall #WorkFamily,” Hargitay hashtagged the candid snap.

Giddish and Faulborn’s newest addition will join big brother Ludo, 3, whom the couple welcomed in October 2015, four months after trying the knot in a secret beach wedding in Florida. One of Giddish’s costars was also one of the first to break the news of Ludo’s birth, when Ice T posted a photo of the newborn from the hospital.

Giddish’s first pregnancy was written into her season 17 storyline on SVU, which revealed that her character was pregnant and that Declan Murphy (played by Donal Logue) was the father. Giddish previously told E! News that her second pregnancy would also be written into the show.

Congrats to the growing family!

(photo via Theo Wargo/Getty Images for Tribeca TV)