 Mills signed for Second Division club Leicester City on 2 March 1989 as part of the deal that saw Phil Turner join County for a fee of £125,000, with over two months of 1988–89 remaining.He slotted straight into the starting line-up, making his debut two days after joining in a 1–0 victory at home to Walsall.He made 13 consecutive appearances for Leicester before missing the last two matches of 1988–89, his new club finishing 15th in the Second Division.