BOSTON (CBS) – Governor Deval Patrick brought his dog to work Friday at the State House.

The dog, Toby, was seen in the Governor’s Office in a picture posted to Patrick’s official Twitter account Friday afternoon.

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The caption to the picture read “Toby makes an appearance in the Governor’s office for #takeyourdogtoworkday!”

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June 21 marks “Take Your Dog to Work Day” for dog owners, a tradition first celebrated in 1999.

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According takeyourdog.com, the event was first started to by the group Pet Sitter’s International, as a way to “celebrate the great companions dogs make.”