Seven-year-old Princess recently appeared with her pop star dad on the ITV quiz show Big Star Little Star.
But it seems her mum wasn't too happy about it.
A fan tweeted Katie, 36, praising her daughter, writing: "Princess is a little cutie on #BigStarsLittleStar @MissKatiePrice x."
The mum-of-five responded: "She is gorgeous but unfortunately I wasn't aware she did the show and wasn't asked if I was ok with it and never saw it!"
Katie's fans came to her defence, with one commenting: "I would have thought both parents would have to sign a consent form giving permission. She was v cute though!"
Another wrote: "I was thinkin When I seen princess on there you wouldnt be happy about it.... X x x."
A fan of Peter Andre's defended him, blasting Katie with: "U mean ur daughter never come home & told u she had just done a show, think u need 2 talk 2 ur child alot more(sic)."
Katie recently said things had settled down between her and her ex after admitting that she had a 'friendly' relationship with his new partner, Emily MacDonagh, mum of Pete's daughter Amelia.
Katie and Peter share custody of Princess and their older son, Junior. Katie is also mum to son Harvey, and two younger children, Jett and Bunny.