He's notoriously private online, but Ashton Kutcher may have just broken his own social media rules.

Just days after celebrating his daughter Wyatt's first birthday, the actor took to Instagram to share a gorgeous snap of her with his fans – for the first time since her birth in October 2014.

 

39 million people have fallen through the cracks into modern day slavery. #redsandproject

A photo posted by Ashton Kutcher (@aplusk) on Nov 7, 2015 at 4:50pm PST

The adorable photo shows a brown-haired toddler standing on a bridge and pointing upward into the sky, dressed in a sweet pair of pink trousers and a floral dress.

Although the Two And A Half Men star did not openly confirm the snap was one of Wyatt, her crop of brown hair certainly makes it very likely.

While Ashton has made every effort to keep his personal life private over the last year, some pictures of Wyatt have made it online – in particular a family Christmas card from himself and wife Mila Kunis which was leaked last year.

Ashton shared the cute snap yesterday as part of the #redsandproject, which sees social media users posting snaps of bright red sand seeping into roadside cracks.

"39 million people have fallen through the cracks into modern day slavery," he wrote alongside the photo.

Of course, this is not the first time Ashton given us a glimpse of Wyatt, although his last snap was a little bit different.

Posting on his official website just days after the little one's birth, Ashton shared eight snaps, each featuring a different baby… or indeed, an animal.

"Can you guess which one is ours, or does it really matter? All babies are cute," he wrote.

He's right… but we still reckon Wyatt's the cutest of them all.