Notts County suffered their seventh home defeat of the season - the second since Gary Mills took charge - as they went down 2-1 against Swindon at Meadow Lane.
Swindon completed the double over Notts having won 4-0 at the County Ground in August.
They were a trifle fortunate to leave with all three points, which boosts their chances of achieving a play-off place.
Notts, with two new players and two others making their home debuts, battled away at the Swindon defence for long periods but without creating really clear cut scoring opportunities.
It was against the run of play - and Notts defenders cannot escape criticism for it - when Swindon took a 35th minute lead through midfielder Brian Howard who got on the end of a lightning breakaway.
Notts continued to hammer away but, with central defenders Alan Reeves and Matthew Haywood holding firm, the visitors seldom seemed in danger of conceding a goal.
When they did, after 66 minutes, it was a disputed penalty for a trip on Paul Heffernan, back in the Notts starting line-up after a four game absence because of injury. Heffernan kept cool to send goalkeeper Rhys Evans the wrong way from the spot.
The clinching goal came four minutes from time with a typically astute header by Tommy Mooney, his 13th goal of the season.
Great credit, though, also belongs to full-back David Duke - who had a fine match defensively - for the quality of his cross which provided Mooney with his chance at the back post.
Notts manager Mills said afterwards that his players could not have given him more and he was naturally disappointed by the outcome.
He acknowledged that additional new players were still needed and revealed he was closer to bringing Gillingham striker Tommy Johnson back to his old club.