Town boss Matt Bloomfield makes two changes to the side that won 1-0 at Derby on Good Friday.
Teden Mengi starts in defence while Liam Walsh returns to the centre of the Hatters midfield.
Jordan Clark misses out with a knock, while Kal Naismith cannot play against his parent club.
There are places on the bench for Shandon Baptiste and Daiki Hashioka.
Town: Kaminski; Jones, Bell, Makosso, McGuinness, Mengi; Walsh, Lamine Fanne, Aasgaard, Alli, Morris.
Subs: Krul, Andersen, Nakamba, Chong, Burke, Baptiste, Hashioka, Nelson, Nordås.
Bristol City: O’Leary, McCrorie, Pring, Bird, Mehmeti, Knight, Vyner, Dickie, Tanner, Wells, McGuaune.
Subs: Bajic, Hirakawa, Williams, Twine, Bell, Roberts, Armstrong, Morrison, Earthy.
Referee: John Busby