Moult scored 23 goals in 47 appearances for the Dragons before leaving for Scottish Premiership outfit Motherwell in July 2015.
Wrexham negotiated a sell-on clause as part of the deal that took him north of the border and they will now benefit from that.
The 25-year-old, it has been confirmed, will be moving to Championship club Preston on January 1 for an undisclosed fee thought to be around £450,000.
It’s not known how much Wrexham will net from the deal but it’s a bonus regardless for the Racecourse club.
Dragons club secretary Geraint Parry told the Daily Post: “It’s good news for Louis and Wrexham though we don’t know how much money we will receive as a result.
“Potentially though, it will be a pleasant New Year bonus. We wish Louis all the best at Preston as he was excellent when he was here.”
Wrexham were beaten 4-1 at Macclesfield Town last Saturday but still remain in a good position, sitting just two points off the top of the National League.
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