Rovers were far from their best in Lancashire and found themselves under the cosh before Miller's sixth strike of the season against the run of play.
Scott Quigley's header had got the home side level just before the interval and it was them who looked more likely to score again.
Still, Gary McSheffrey's side closed out the win with few problems after they went ahead for the second time in the match.
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Still, Gary McSheffrey's side closed out the win with few problems after they went ahead for the second time in the match.
4 / 4