Cake of the Day: Vin Diesel Celebrates His Birthday with a Reminder that He's a Huge Nerd

In case you forgot that Vin Diesel was a big geek, he shamelessly reminded you on his Facebook page July 19.

The big man was celebrating his 48th birthday in his own style with this gorgeous cake shaped like Dungeons & Dragons books.

Diesel has long been open about his fandom with the table top role playing game and about how it helped him shape his identity and build confidence

He also said as much to Jimmy Fallon on The Tonight Show.