Callum Wilson scored the only goal as Eddie Howe's Newcastle claimed their first Premier League win of the season at the expense of fellow strugglers Burnley.
Wilson steered the ball into the roof of the net from the edge of the area after Burnley goalkeeper Nick Pope fumbled Joe Willock's cross under pressure from Fabian Schar.
Burnley created the better openings before Wilson struck, Maxwel Cornet twice going close and Johann Berg Gudmundsson striking the outside of the post via a deflection off Javier Manquillo.
Matej Vydra also missed a glaring opportunity to equalise on the stroke of half-time, shooting tamely over the crossbar from Matt Lowton's right-wing delivery.