Barnsley manager Mark Robins hopes his side's display in the midweek win over Leeds can help boost attendances at Oakwell this season.
A crowd of more than 20,000, albeit swelled by a massive travelling contingent, saw the Tykes hammer Leeds 5-2 on home soil on Tuesday night and Robins believes his new-look side could have convinced the doubters.
Robins said: "Hopefully that performance will have made a few people's minds up about coming down to watch us if they were still undecided. We would love to have that kind of atmosphere here every week.
"It is just three points and we have to move on now but take the confidence and good feeling that has been built from it.
"Derby will bring a decent following on Saturday and we want as many Barnsley Football Club supporters as possible here.
"We have laid the Leeds game to rest now and we are only focussing on Derby County. We do not want to let people down this weekend."