"We haven't officially changed the name legally," Kylie said on the Late Late Show on September 8 during an appearance

alongside her mother, Kris Jenner. "So, his name is still Wolf. His passport is Wolf, but that's not going to be his name. We're just waiting."

However, when host James Corden asked Kylie what she calls her 7-month-old son, The 

Kardashians star kept her mouth shut about the child's new name, adding that Travis is a bit undecided about the choice.

"We're not officially, we'll probably change it until...," Kylie continued, before Kris entered the conversation, "He's 21."

Although Kylie confirmed that she and Travis - who are also parents to 4-year-old 

Stormi Webster - have stuck to one name, she confirmed that her son is no longer named after a pet.

In February, the star and the rapper welcomed their second child together. Initially, Kylie publicly announced 

that her son's name was Wolf, however, the following month, the cat told fans that she and Travis opted for another name.

"Just so you know, our son's name is no longer Wolf," she wrote on her Instagram Stories on 

March 21. "We really didn't feel like it was him. We just wanted to share because I keep seeing Wolf everywhere."