Simon Cox's 74th-minute header was enough to give Swindon a battling win in the derby with Bristol Rovers.
The Robins striker rose at the near post to nod home Michael Timlin's in-swinging corner from the left.
The goal was tough on Rovers who wasted a fine opportunity five minutes earlier when Craig Disley fired over after being put clear by Rickie Lambert.
Rovers also went close when defender Byron Anthony had a second-half shot cleared via a defender and the post.
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Bristol Rovers: Phillips, Lescott, Anthony, Elliott, Jacobson, Pipe (Haldane 77), Campbell, Disley (Klein-Davies 76), Lines, Rigg (Williams 77), Lambert.
Subs Not Used: Hinton, Clough.
Swindon: Brezovan, Jack Smith, Ifil, Vincent, Comminges (Aljofree 84), McNamee, McGovern, Easton, Timlin, Peacock, Cox (Paynter 83).
Subs Not Used: Phil Smith, Pook, Joyce.
Booked: Jack Smith, Cox.
Goals: Cox 74.
Att: 6,102
Ref: Steve Bennett (Kent).
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