The Sky Blues made it seven unbeaten in all competitions with a 1-0 victory away at Doncaster Rovers at the Keepmoat Stadium.
Jordan Shipley scored from distance midway through the first half, in what would prove to be the only goal of the game.
The win means its three victories in a row away from home for the Sky Blues in League One, as they remain 4th, three points off the top two.