Romain Vincelot scored the only goal of the game on his debut as Gillingham beat AFC Wimbledon to move five points clear at the top of League Two.
The midfielder, who joined on loan from Brighton this week, fired into the bottom corner from the edge of the area midway through the first half.
The home side rallied after the break with George Francomb and Rashid Yussuff going close for the Dons.
Steven Gregory shot wide late on as the Gills held on to take all three points.
Wimbledon have now only won once in four games since Neal Ardley took charge at Kingsmeadow earlier this month.
VIEW FROM THE DRESSING ROOM
AFC Wimbeldon boss Neal Ardley told BBC London 94.9:
"I saw a team that played with fear. I saw a team that didn't know how to see themselves through a difficult situation.
"It was against the wind and we got caught between two stools.
"We didn't win our battles enough and I think there was a little bit too much respect shown. We were lucky to come in at 1-0 down."
Gillingham manager Martin Allen told BBC Radio Kent:
"The last home game they had they were 3-0 up after half an hour and you can see why, but all our players showed tremendous courage.
"Everyone defended and stood firm. We've played better football, but every man stood up to the test, and all credit to their strength of mind to defend that solitary goal.
"The wind was a massive factor but it was a quality finish and it was enough to win it."
Live Text Commentary
Full Time The referee signals the end of the game.90:00 +3:24
Steven Gregory has an effort at goal from outside the penalty area which goes wide right of the goal.90:00 +3:00
Curtis Osano takes a shot. Andy Frampton gets a block in.90:00 +1:02
The ball is crossed by Christian Jolley, save by Stuart Nelson.90:00 +0:39
The ball is swung over by Christian Jolley, clearance made by Tom Flanagan.89:52
The ball is sent over by Christian Jolley, Adam Barrett makes a clearance.88:46
Long range effort by Steven Gregory goes wide right of the net.88:04
Romain Vincelot concedes a free kick for a foul on Byron Harrison. Shot on goal comes in from George Francomb from the free kick, blocked by Andy Frampton.87:27
Free kick taken by Will Antwi.87:27 Booking
Booking Charlie Lee goes into the book.87:06
Free kick awarded for an unfair challenge on Seb Brown by Charlie Lee.86:45
Christian Jolley produces a cross, Romain Vincelot makes a clearance.85:19
Stuart Nelson takes the indirect free kick.85:19 Substitution
Substitution Christian Jolley is brought on as a substitute for Curtis Haynes-Brown.85:19
Luke Moore is caught offside.84:59
The ball is delivered by George Francomb, clearance by Romain Vincelot.84:51
George Francomb crosses the ball, clearance made by Danny Kedwell.84:17
Unfair challenge on Luke Moore by Tom Flanagan results in a free kick. George Francomb restarts play with the free kick.81:53
Romain Vincelot takes a shot from long range which goes wide right of the goal.81:30
Centre by George Francomb, clearance by Lewis Montrose.
The assistant referee flags for offside against Matt Fish. Will Antwi restarts play with the free kick.78:55
George Francomb sends in a cross.77:42
Danny Kedwell takes a shot. Save by Seb Brown.76:18
Byron Harrison produces a right-footed shot from deep inside the penalty box which goes wide of the left-hand post.75:33 Substitution
Substitution Charlie Lee replaces Myles Weston.71:19
Unfair challenge on Yado Mambo by Danny Kedwell results in a free kick. Yado Mambo takes the direct free kick.69:35
Inswinging corner taken right-footed by George Francomb, Adam Barrett makes a clearance.69:13
Rashid Yussuff takes a shot. Stuart Nelson makes a save.68:31
Rashid Yussuff sends in a cross, clearance made by Tom Flanagan.67:51
Free kick awarded for a foul by Lewis Montrose on George Francomb. Steven Gregory takes the free kick.67:09
Effort on goal by Chris Whelpdale from just outside the penalty area goes harmlessly over the target.66:22
Byron Harrison challenges Lewis Montrose unfairly and gives away a free kick. Stuart Nelson takes the free kick.65:12 Substitution
Substitution Luke Moore joins the action as a substitute, replacing Stacy Long.60:26
George Francomb produces a right-footed shot from long distance which goes wide right of the goal.58:30
Foul by Ben Strevens on Rashid Yussuff, free kick awarded. Direct effort from the free kick comes in from Rashid Yussuff, save made by Stuart Nelson.58:17
The ball is sent over by Steven Gregory, Tom Flanagan manages to make a clearance.55:09
Inswinging corner taken right-footed by George Francomb, save by Stuart Nelson.54:44
George Francomb takes a shot. Save by Stuart Nelson.54:22
The offside flag is raised against Myles Weston. Free kick taken by Will Antwi.52:22
George Francomb has an effort at goal from outside the box which goes wide right of the target.52:09
The ball is delivered by Curtis Haynes-Brown, Lewis Montrose manages to make a clearance.50:01
Myles Weston takes a shot. Blocked by Curtis Osano.49:11
Byron Harrison concedes a free kick for a foul on Matt Fish. Stuart Nelson restarts play with the free kick.47:36
Chris Whelpdale concedes a free kick for a foul on Seb Brown. Indirect free kick taken by Seb Brown.46:57
The ball is swung over by Matt Fish, clearance by Curtis Haynes-Brown.46:03
Corner taken right-footed by George Francomb from the left by-line, save made by Stuart Nelson.45:01
The referee gets the second half started.45:00 +1:51 Half time
Half Time The players leave the pitch at half time.45:00 +1:16
Stacy Long has a curled shot. Stuart Nelson makes a save.43:33
Inswinging corner taken by Chris Whelpdale from the right by-line, Matt Fish has an effort at goal from long range that misses to the right of the goal.43:07
Matt Fish takes a shot. Save by Seb Brown.39:55
Corner from right by-line taken by Myles Weston.39:15
Free kick awarded for a foul by Byron Harrison on Matt Fish. Andy Frampton restarts play with the free kick.37:58
Rashid Yussuff crosses the ball, clearance made by Tom Flanagan.37:38
Lewis Montrose challenges Rashid Yussuff unfairly and gives away a free kick. Free kick taken by Steven Gregory.37:12
The ball is crossed by Rashid Yussuff, clearance by Tom Flanagan.35:51
Free kick awarded for an unfair challenge on Andy Frampton by Byron Harrison. Andy Frampton restarts play with the free kick.34:23
Romain Vincelot challenges Curtis Haynes-Brown unfairly and gives away a free kick. Curtis Haynes-Brown restarts play with the free kick.33:20
Centre by Romain Vincelot, George Francomb makes a clearance.32:26
The ball is crossed by George Francomb, Matt Fish makes a clearance.31:57
Header from deep inside the area by Tom Flanagan goes harmlessly over the crossbar.30:28
Myles Weston takes a outswinging corner from the left by-line played to the near post.30:02
Romain Vincelot delivers the ball, Curtis Osano manages to make a clearance.28:49
George Francomb delivers the ball, inswinging corner taken by George Francomb from the left by-line played to the near post, Chris Whelpdale manages to make a clearance. Rashid Yussuff takes a shot. Blocked by Danny Kedwell. Curtis Haynes-Brown makes a clearance.28:19
Free kick awarded for a foul by Chris Whelpdale on Stacy Long. Steven Gregory takes the direct free kick.27:40
Curtis Haynes-Brown produces a cross.24:57
Centre by Curtis Haynes-Brown, save made by Stuart Nelson.23:19
Inswinging corner taken right-footed by Chris Whelpdale.22:06
Assist by Chris Whelpdale.22:06 Goal scored
Goal! - Romain Vincelot - Wimbledon 0 - 1 Gillingham Romain Vincelot grabs a goal from just outside the area to the bottom left corner of the goal. AFC Wimbledon 0-1 Gillingham.20:37
Chris Whelpdale takes a shot. Save by Seb Brown.17:48
The ball is sent over by George Francomb, save by Stuart Nelson.13:36
The assistant referee flags for offside against Byron Harrison. Tom Flanagan restarts play with the free kick.12:42
Myles Weston has an effort at goal from outside the box which goes wide left of the goal.10:50
The ball is sent over by Danny Kedwell, Myles Weston takes a shot. Inswinging corner taken right-footed by Myles Weston. Inswinging corner taken right-footed by Myles Weston from the right by-line, clearance by Will Antwi. Save made by Seb Brown.10:14
Jack Midson produces a cross.9:16
Ben Strevens challenges Byron Harrison unfairly and gives away a free kick. Free kick taken by Steven Gregory.8:39
Effort from inside the area by Ben Strevens misses to the left of the target.8:28
The ball is crossed by Stacy Long.3:47
Tom Flanagan is ruled offside. Seb Brown restarts play with the free kick.2:30
Andy Frampton fouled by Rashid Yussuff, the ref awards a free kick. Stuart Nelson takes the free kick.1:35
Myles Weston fouled by Rashid Yussuff, the ref awards a free kick. Direct free kick taken by Chris Whelpdale.0:00
The referee gets the match started.
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