The 19-year old has signed a two-year deal with the Dons and was absolutely delighted to commit himself to the Pittodrie club.
"I spoke with my family and my agent but it was a very simple decision in the end. Aberdeen is a good club to be playing your football at," he told the club's official website.
"Hopefully I can repay the faith the management team have shown in me by offering me the deal."
Since making his senior debut in April 2012, Masson has made a total of seven appearances for the Dons, scoring one goal.