Former Ahli holding midfielder Mostafa underwent medical examinations that indicated he is fit to take part in Monday's match.
The 30-year-old missed Zamalek's first couple of matches through injury. Head coach Hossam Hassan originally planned to keep him sidelined for a third consecutive game.
But after the examinations Hassan decided to add Mostafa to the provisional squad.
Zamalek's squad:
Goalkeepers: Abdul-Wahed Al-Sayed – Essam Al-Hadari.
Defenders: Amr Gaber – Mahmoud Fathallah – Amr Al-Safti – Mohamed Youness – Mohamed Abdul-Shafi – Hazem Emam – Sabri Rahil – Mohamed Ibrahim.
Midfielders: Hani Saeid – Hassan Mostafa – Wageeh Abdul-Azim – Ibrahim Salah – Ashou Al-Adham – Alaa Ali – Shikabala – Hussein Yasser.
Strikers: Emad Mohamed – Amr Zaki – Ahmed Gaafar – Abou Kone.