كتب : وكالات
Playing against Egypt youth teammates Saleh Gomaa and Ali Ghazal, striker Koka opened the scoring after half time.
But Brazilian striker Diego Barcelos equalized for hosts Nacional with 10 minutes to play.
Koka was replaced in the 86th minute, while Nacional defender Ali Ghazal, who earned his first Egypt call-up last week, played 70 minutes.
Midfielder Gomaa, on loan from ENPPI, was substituted at half time.
Koka, who was overlooked by Egypt manager Shawki Gharib for this week's friendly against Bosnia, scored his first league goal since August 2013.