David Bell capitalised on a goalkeeping mistake to score his first goal as Coventry beat Doncaster.
Goalkeeper Neil Sullivan came rushing out on 20 minutes, only to kick his clearance straight at Bell, who finished superbly from 45 yards.
Stephen Wright saw a shot hit the post minutes later while Coventry keeper Keiren Westwood saved John Spicer's shot as Doncaster pressed forward.
The victory moves Coventry nine points clear of the relegation zone.
Coventry manager Chris Coleman:
"It was a fantastic piece of awareness from Bell and the strike was perfect. As soon as it left his foot, it was a goal," .
"I don't think there are too many players on the pitch that could have done that.
"We have 50 points now and we have two games in hand on some of the teams above us.
"We have to keep grinding out results if we have to because it is all about how high we can finish."
Doncaster manager Sean O'Driscoll:
"It is difficult to win in this division, especially when you concede poor goals, and that was a poor goal from our point of view. It was a great finish but a poor goal for us.
"Neil Sullivan's experience speaks for itself, he's 39 years old and I'm not going to teach him to suck eggs.
"He's tried to clear the ball further up the pitch because of Gunnarsson's long throw but in hindsight he should probably have stuck it into row Z and defended the next attack."
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