The 22-year-old scored his side’s second goal in the 48th minute with an out foot shot from the 18-yard box.
Powel Bochniewicz opened the scores Gornik Zabrze in the 36th minute of the first half.
The former Barcelona player, Moro as he is fondly called played an integral part in Gornik Zabrze achievement last season as he was named the Fans Player of the Year.
He has now scored three goals in 27 appearances for the Polish top flight side.
Gornik top the Polish Ekstraklasa table on goal difference with 6 points, leveled with second and third occupants while Stal Mielec sits on thirteen position after collect a single point in two games.