Caitlyn Jenner tried to celebrate daughter Kylie's 22nd birthday by posting a baby photo - put put up a snap of her sister Kendall instead.
Kylie celebrated her birthday on Saturday and while Caitlyn's faux pas was only online for a few minutes it was enough to catch the internet's attention.
Alongside a photo of Kendall, now 23, Caitlyn captioned the throwback snap: "Life was so simple back then, but life is so good today.
"Happy birthday to my little baby @kyliejenner."
Caitlyn deleted the post after she realised it was a mistake.
She then tried to make amends by sharing a picture of Kendall and Kylie when they were youngsters, along with a caption: "Happy birthday @kyliejenner."
In the comments of the new photo, one commenter jested: "Ahhh pics with them both. Better not to risk it!"
Another added: "Glad you got the right daughter this time, sis."
Kylie has been living it up on a huge yacht in Italy, along with a selection of friends and family to mark the happy occasion.
Kendall hasn't joined the party though and sent her birthday wishes from afar, though she managed to get the photo situation right first time.
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