When the end of the NHL lockout was first announced, Hadfield showed his support for the team by tweeting a picture of himself holding a Leafs plaque.
That didn't sit well with many hockey fans, including former Canadian astronaut Marc Garneau, who fired off a tweet promoting the Montreal Canadiens.
During his first news conference from the International Space Station today, Hadfield was asked his feelings about the Habs.
He replied he is pleased the NHL is starting up and that he is looking forward to watching the games when they're piped up to the space station.
The native of Sarnia, Ont., says the Leafs were the first team he fell in love with and that he has been loyal to Toronto his whole life.
The Canadian space veteran joked that the Leafs are still unbeaten and he is hoping that will continue through the season.