The experienced Northern Ireland international stepped off the bench to nod home the equaliser in the 2-2 draw with the Millers.
Leon Johnson should be available again after missing Tuesday due to family reasons but Anthony Stewart could be out for the rest of the season after having an operation on a fractured hand.
Captain Dave Winfield went off with a hip problem on Tuesday night and is a doubt as is Matt McClure who suffered an ankle injury.
The Chairboys are 12 points clear of the relegation zone in npower League Two after losing just one of their last four matches.
- Sports & Recreation