Third Division 'Gers beat Premier League leaders Motherwell 2-0 at Ibrox last night thanks to goals from Lee McCulloch and Dean Shiels and now McCoist is eyeing a possible quarter-final fixture against their Old Firm enemies.
"Just give me a home draw in the next round," said McCoist.
"I wouldn't care who it was, as long as it was a home draw.
"But the prospect of an Old Firm match is a completely different proposition.
"That would create a massive amount of interest for sure."