Despite having been on top for much of the game against their managerless opponents, the Cobblers looked as though they would have to settle for a point before Kelvin Langmead struck.
The result leaves Aidy Boothroyd's men on 40 points, 5 clear of the relegation zone and looking upwards rather than over their shoulders in League Two.
Reaction to follow on Cobblers Mad.
Source: FOOTYMAD