The Republic of Ireland youth international was lackadaisical in his back pass to Murphy Cooper, which Morgan Whittaker pounced on to give the home side a lead they never really looked like giving up. That said, Boro were limited to few chances themselves by a hard-working Wednesday performance.
The match, the penultimate away day in what has been a long and arduous Owls campaign, will not go down in the annals of history.
Here are our ratings from the Riverside.
1. Murphy Cooper - 7
In for the injured Charles. Stuck out a paw late in the first half to avert danger. A curiosity of the game that beyond that, he didn't have that many saves to make - but he was sharp off his line and moved the ball on well. | UGC
2. Sean Fusire - 6
Nuggety in defence and did well to stick at his task. Things broke down going the other way a little too often as Wednesday struggled to get out in the first half - grew into it later on. | UGC
3. Liam Palmer - 6
Saw more of the ball than any other Owls player - other than Cooper. Battled away and just keeps going and going. | UGC
4. Gabriel Otegbayo - 6
First major contribution was to stop a promising attack. His second was a brain fart of the highest order, lazily passing back to Cooper for Whittaker to slide in and open the scoring. Beyond that, very good. It's consistency that costs him. | UGC