Having won their second round replay at MK Dons by the same 1-0 scoreline as in the first game, manager Paul Cook spoke to Spireites Player.Gary Roberts was the match-winner this time around, scoring just before half time to book the Spireites fixture with Scunthorpe United in the third round on Tuesday night.
Speaking after the match, Cook expressed his pleasure at the rich vein of form his side have worked hard to get themselves into.
"We're delighted," he said. "After the initial game everyone was a bit flat and our supporters were disappointed - but 1,100 of the turned up tonight and they're not disappointed now.
"We've got a little bit of belief among our supporters at the moment and it's great to see as a manager because our players don't half work hard and as a supporter or a manager you should always be proud of that.
"We won't always win, it's a good night tonight - and the thing that pleases me the most is the work ethic."
Cook explained that wins such as the one at Stadium MK come about through hard work, especially necessary during the gruelling festive period.
He said: "Over Christmas they've had to make sacrifices. They've come in, they've worked and not had a cross word. We had to come back down today, prepare properly and we played well again today.
"I felt in the balance over 90 minutes we deserved to win. We've got good players, we're a good club and we want to act a bit more that way.
"Our support over Christmas has been second-to-none, absolutely top class, and I think the players have backed that up with another good performance."