The NHL made an announcement following the Colorado Avalanche's second goal against the Montreal Canadiens.
It even created a pretty funny moment, as hats and caps rained down onto the ice because the crowd believed Brock Nelson had completed his hat trick - but no.
The NHL had just removed Nelson's second goal in order to credit it to captain Gabriel Landeskog.
"The second goal has been changed to Gabriel Landeskog. Still 3 points for Nelson, but Landy gets his 4th goal of the season."