John Paul Kissock then released Brendan McGill down the right flank and his cross was met by Paul Murray, whose flashing header came off McGregor's right hand post.
The home side threatened briefly with a flurry of attacks after the interval, with Francis Dickoh heading over from a corner, Murray crashing a volley straight at Allan McGregor, while a skidding free kick from Zemmama had the Rangers keeper sprawling awkwardly to save, although the ball look like it was going wide.