Coleman said: "It wasn't comfortable and if they'd got it back to 4-3 it would have been nervy. I'm just glad I'm on Beta Blockers to calm me down.
"At 4-1 we were in a magnificent position and then for some reason, we stopped playing. They're a good side and were always a threat and our keeper had to pull off a couple of good saves.
"I'm delighted with the win and just disappointed we didn't see it out better. We could have been punished and they could have got something out of the game."