Barnsley beaten by the Sky Blues away from home.
It was a game to forget for Valérien Ismaël's side at St. Andrew's, with a lerthargic and disjointed performance punished by the battling hosts.
Goals from Dom Hyam early in the first half and then substitute Matty Godden late in the second saw off an out-of-sorts Barnsley who failed to add to their impressive away run.
A Reds side showing just the one change from the victory against Middlesbrough last time out, as Conor Chaplin came in for Dominik Frieser, were quickly undone by the Sky Blues.
After threatening in the early stages with balls in behind the Barnsley backline, one such foray forward resulted in a throw-in to Coventry, deep by the corner flag, which they took quickly and Max Biamou smartly pushed the ball back towards the edge of the box for Dom Hyam to thrash home into the net, beating Brad Collins at the left-hand post.
The Reds didn't respond and could have been further behind when struggling to deal with the many long-throws from the left flank, but thankfully, the ball didn't sit kindly for the home side.
Romal Palmer saw a weak header comfortably saved midway through the half as the Reds finally began to show their own teeth on a sunny afternoon in the second city.
But Hyam should have doubled his tally for the game but somehow headed over, unmarked from yet another Sam McCallum long-throw.
There was a late chance for Cauley Woodrow, as Daryl Dike and Chaplin linked well to release the Reds' number 9 but whilst the striker got there just ahead of the outrushing 'keeper, he stabbed it just wide.
HALF-TIME: Coventry 1-0 Barnsley
A number of players couldn't have complained had they been hauled off at the break, but it was Chaplin who made way, as Carlton Morris emerged from the tunnel for the second half.
But the change made little difference in the event, with the Reds' football struggling to break down a very hard working and resolute Sky Blues defence and midfield.
Despite further introdutions, the equaliser didn't look any closer to coming, but it was Frieser with the first shot on target in the second half, as the Austrian sub skipped into the box after good play by Callum Styles but shot straight at the 'keeper.
There was a lot of possession for Ismaël's side, but very little invention, and the only further opportunity came in the final 10 minutes as Daryl Dike blasted against the upright, again from an acute angle following a well-flighted Alex Mowatt pass to the far post.
The hosts though killed the game on the counter-attack, when Godden - who looked offside - curled home from just inside the box, as the Reds' six-game winning run away from home came to an end.
FULL-TIME: Coventry 2-0 Barnsley
Collins, Brittain, Sibbick, Helik, Andersen, Styles, Mowatt, Palmer (Halme), Woodrow (Frieser), Chaplin (Morris), Dike.
Unused: Walton, J.Williams, Sollbauer, Moon, Oduor, Adeboyejo.