After a thrilling 3-3 draw at home against Sporting Braga on Thursday night, Royale Union St. Gilloise of Belgium advanced to the knockout round of the UEFA Europa League.
Boniface scored in the 20th and 62nd minutes, respectively.
The former Flying Eagles forward has now scored three goals for Union St. Gilloise in the competition this season.
Union St Gilloise are unbeaten in the group stage and have amassed 10 points from four matches.
The 21-year-old joined Les Unionistes from Norwegian club, Bodo/Glimt this summer.
The striker has also registered two goals in seven league appearances for the club.