Alexis Stewart and Martha Stewart Alexis Stewart and Martha Stewart

Martha Stewart is a grandma — but don't call her that.

Alexis Stewart welcomed baby girl Jude via gestational carrier on Tuesday, she announced on her radio show Whatever with Alexis & Jennifer. She also added that she doesn't plan for her famous mother to be called a grandmother anytime soon.

"Martha is going to be called, 'Martha.' ... I was like, 'Do you really want to be 'Grandma'? I don't like the term Grandma!" she said.

See photos of Alexis Stewart

Stewart, 45, struggled for two years with getting pregnant from fertility treatments and decided to go with a surrogate.

Martha told the NY Post on Thursday, "I am just thrilled that Alexis' greatest wish has been fulfilled."