Ghanaian forward Osman opened the scoring for KAA Gent in their 2-1 defeat at KV Oostende in the Belgium Pro League on Sunday.
The 22-year-old took just five minutes to put the visitors in front until the end of the first half.
However, the home side pulled parity through Makhtar Gueye in the 61st minute before Fashion Sakala scored the match from the spot-kick.
French-born Ghanaian midfielder Elisha Owusu was adjudged to have handled the ball, leading to the resultant penalty kick.
Bukari, who is a Ghanaian youth international has scored two goals assists in nine games so far in the Belgium top-flight.