Ashton Kutcher's birthday cake, with Kutcher (inset)
Courtesy Ashton Kutcher; Inset: PictureGroup
02/08/2012 at 09:00 AM EST
As office birthday cakes go, Ashton Kutcher
sure got a nice one!
The actor, who turned 34 on Tuesday, Tweeted out a photo of the cake
his colleagues gave him on the set of Two and a Half Men
– featuring an image from the opening sequence of the show.
"Love my coworkers!" Kutcher wrote.
With his estranged wife Demi Moore
recovering in rehab
following her recent hospitalization
, Kutcher returned to the set of his CBS sitcom on Jan. 31 after a trip to Brazil.
"Ashton was in a great mood and seemed to be excited to be back at work," an eyewitness told PEOPLE at the time. – Tim Nudd