Gillingham denied Tranmere Rovers the chance to move into the play-off places after a 2-0 victory at The Priestfield Stadium.
Ronnie Jepson's side moved into the top half of the table following a dominant first-half display, in which both decisive goals were scored.
The Gills claimed the lead on 22 minutes following a corner from the right that eluded Rovers' on-loan goalkeeper Joe Hart.
Gillingham striker Bas Savage forced his Tranmere marker in Chris McCready to inadvertently knock the ball into his own net for 1-0.
The Kent-based club doubled their advantage seven minutes later, as Andrew Crofts brilliantly headed home Mark Bentley's cross from the right.
Tranmere's first-half display would have angered manager Ronnie Moore, but the Wirral-based outfit were better after the restart.
Chris Shuker was unlucky to hit the underside of the crossbar following a neat Rovers move before both Chris Greenacre and John Mullin saw decent headers strike the post.
Some good goalkeeping from Gillingham's on-loan goalkeeper Romain Larrieu meant the home side kept a clean sheet on Friday evening.
Click below for a match summary:
Gillingham 2-0 Tranmere Rovers