Boyd Petry knows his dad when he sees him.

Boyd called out when he saw his dad Jeff, the Montreal Canadiens defenseman, appear on the TV during the national anthems before Montreal's game against the Pittsburgh Penguins on Wednesday.

Tweet from @petryules: Sure is! ������ @PetryJ pic.twitter.com/oRDaNbqIqz

"That's my daddy!" Boyd yelled as the camera showed Jeff standing on the blue line.

Boyd has become something of an online sensation, thanks to his mom and Jeff's wife Julie Petry, who has shared several of his adorable moments, and this one was no exception.