James Vaughan grabbed a precious seventh goal of the season to lift Town six points above the Championship relegation zone with the winner at Burnley.
The on-loan Norwich striker pounced after 55 minutes to clinch a 1-0 win when Turf Moor keeper Lee Grant failed to hold a raking drive from Calum Woods.
It earned Town their first away points of 2013, lifted them to 18th in the table and earned them a first victory at Burnley since 1972 and first double over the Clarets since 1950-51.
New manager Mark Robins savoured his first win since arriving from Coventry and was particularly pleased with a second successive clean sheet - Alex Smithies making a brilliant last-minute save from substitute Sam Vokes to preserve the points for 757 travelling fans in a crowd of 11,266.
After a dull stalemate of a first half, Town deserved the spoils for a performance full of defensive grit and determination.
While Vokes hit the bar with a header, Town could easily have extended their lead at the end with two good chances for Theo Robinson - who made the first start of his loan spell from Derby County - and another when Grant smothered from Sean Scannell.
Robins praised Town for their resilience and said the result would do wonders for confidence, spirits and morale ahead of Saturday's trip to Brighton.