كتب : Hatem Maher
Niger international Kamilou Daouda headed in the winner in the 32nd minute of the game.
Dynamos will face a daunting task in the second leg when they meet Coton Sport in Cameroon.
The Harare-based are looking to reach the Champions League final for the second time in their history.
In the other semi-final game, five-time champions Ahli held Nigeria’s Enyimba to a goalless draw in Aba.