The 27-year-old made his return from a hernia and groin injury at the weekend, his first action since September 27.
Lafayette, who moved to Kenilworth Road from Welling in the summer said: “It’s ultimately down to the gaffer. If I can get another half an hour that would be great. If I get a starting position, even better.
“Hopefully I can get some game sharpness under my belt and try to push on for a starting place on Tuesday.”
After the thoroughly disappointing 3-0 reverse at Morecambe on Saturday, Lafayette is well aware how important it is to bounce back quickly.
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He continued: “We need a result. The last four games have been a bit hit and miss. Obviously we’ve been getting our wins but not like the run we were on. I think we’ll come good again.
“No doubt the gaffer will be working us very, very, very hard so we are ready and flying for Bury.”
Should Luton succeed tonight, then they will visit another League Two team, in either Cambridge or Mansfield, and Lafayette hopes success would see them finally draw one of the big boys.
He added: “It has not been the kindest of draws for us, in terms of glamour anyway. We know that, first and foremost, Bury is the one that we’ve got to focus on.
“That’s going to be a tough game in its own right but then Cambridge and Mansfield is no easy place to go either. I think we’ve got enough in our locker to get through and navigate the next two ties and hopefully get a good, glamour tie.”