After claiming the name didn't really fit her new little one, the Kylie Cosmetics founder decided to ditch the moniker altogether, but she has yet to reveal the new one to the public.
Following Kylie's announcement, Caitlyn confirmed to Entertainment Tonight on Sunday, March 27, that her daughter has already picked out a new name, which is top secret information right now.
"I cannot tell," the I Am Cait star, 72, stated of her grandson's name. "Kylie has not officially announced it. We have discussed this a lot. I think I have a lot of experience on naming people, especially trying to name yourself, and it's very difficult."
Caitlyn — who announced her name change in 2015 as part of her transition — revealed to the outlet that she "struggled" to pick out a fitting name "for years."
Caitlyn has 10 kids of her own and 20 grandchildren so far, including the newest addition, Burt Jenner's daughter, Goldie Brooklyn Jenner, who "came into the world just this week."
"When you have a little child, you know the little baby comes out and you think of what it should be, but then you get them in your arms and you play with them and spend time with them and say, 'I don't know if that name fits, maybe there's another name.' That's Kylie's decision when she officially announces it," the reality star declared to the outlet. "But honestly, I think this is very good."
As OK! reported, Kylie shocked her fans by revealing she changed her son's name after giving birth to him just last month on February 2.
Her loyal fans have since been eagerly awaiting the announcement of her baby's new moniker, which is expected to be just as unique as the names of her nieces and nephews, as well as her and Travis' first-born daughter, Stormi, 4.