Smith has been injured since pre-season but put in an energetic display in the 3-0 defeat to Ipswich.
City should have taken the lead in the first half when Chris Martin was felled in the box, but Chris Brown failed from the spot. Danny Haynes, as always, scored for the Suffolk side soon afterwards.
Julien Brellier had to leave the field after only ten minutes with an ankle injury, the extent of which is not known.