Omid Alishah found the back of the net with a header in the 69th minute.
In Kerman, Mes defeated struggling Naft Masjed Soleyman, while Sanat Naft and Foolad played out a goalless draw in Abadan.
Gol Gohar will play Tractor in Tabriz on Saturday, while Havadar host Aluminum in Tehran.
Persepolis leads the IPL table with 35 points.
Sepahan is second with 30 points.