Khloé Kardashian and Tristan Thompson are making a change to their little family...a name change!

A little over a year after welcoming their second child together, 13-month-old Tatum, Khloé and Tristan have officially changed their son's name.

According to People, despite calling him Tatum publicly, Khloé initially listed his name as Baby Kardashian on his birth certificate.

So, not only did he not have a first name, but he also didn't take on his father's last name. But according to documents obtained by People, Khloé and Tristan legally changed their son's name to Tatum Thompson as of today.

An LA county judge granted the name change earlier today. Per California law, new parents have the option of giving their child the mother's last name, the father's last name, or a combination of the two. It is permanent unless a court order rules otherwise.

Khloé and Tristan welcomed baby Tatum in July 2022 via surrogate. They also share 5-year-old True, who just entered kindergarten.

Better late than never!