Sarah Michelle Gellar's 4-year-old daughter, Charlotte, questions her mom's fashion sense; find out why she calls Gellar's style "understated". Credit: Ari Perilstein/WireImage

At just 4 years old, Charlotte Prinze, Sarah Michelle Gellar and Freddie Prinze, Jr.'s daughter, is already a budding fashionista. In fact, the little girl has been doling out style advice . . . to her mom!

Telling Us Weekly how her style has evolved since becoming a mom to Charlotte and son, Rocky, 23 months, Gellar called out her footwear. "My heels have certainly gotten a little bit lower, so thank you, platform sneakers. I appreciate you," Gellar said.

While her feet may thank her, Gellar's stiletto for sneaker swap has elicited a strong reaction from young Charlotte.

"My daughter says to me all the time, 'Mom, why do you look so understated?' Thank you, Fancy Nancy," Gellar told Us, referencing the popular children's book series. "[Her style is] apparently, way better than mine, and way fancier."