Coventry ended Exeter's unbeaten record with a 2-0 win at the Ricoh Arena.
Troy Brown's own goal just before the hour mark and a last-gasp Dion Kelly-Evans strike sealed the win for the Sky Blues.
The table-topping Grecians went into this contest unbeaten, with seven wins from their first eight outings.
But despite that, it was Coventry who started the brightest and Peter Vincenti fashioned their first effort on goal after 15 minutes when he flashed a shot just wide.
Coventry's best chance of the half came right before the interval when Duckens Nazon unleashed a shot that went just wide.
Coventry went in front thanks to an unlikely source on 58 minutes.
Jones whipped in a cross and it took a touch off Troy Brown and sailed into the Exeter goal.
Reuben Reid was then through on goal late on but drew a terrific save from Lee Burge.
And Coventry made sure of the win in added time when Kelly-Evans charged onto Jones' ball and fired home to end Exeter's run.