Jay Emmanuel-Thomas grabbed an injury-time winner as Gillingham recorded their first League One victory in eight games by beating promotion-chasing Northampton 2-1.
The striker curled a left-footed shot past Adam Smith in the 92nd minute to give his side their first victory since late September.
John-Joe O'Toole had given Northampton a first-half lead from close range but Max Ehmer equalised after the break before Emmanuel-Thomas' effort.
The home team started well but it was the visitors who scored first in the 36th minute as O'Toole squeezed a header through two defenders after being left unmarked in the six-yard box.
The Gills then hit back early in the second half as Ehmer slid in at the back post to convert a flick from Emmanuel-Thomas.
Both sides had chances to take the lead but the game appeared to be petering out into a draw.
However, Emmanuel-Thomas - Gillingham's top scorer this term - pounced late on to give the hosts a win that moves them away from the relegation zone.