Chris Wilder admits he is keen to add a striker to his squad following Oxford's 3-0 loss to Charlton.
The U's have relied heavily on James Constable, Dave Kitson and Deane Smalley and Wilder wants a new addition to boost his promotion hopefuls.
"I'm confident if we get the go-ahead to do it we can crack on because we need a lift," Wilder told BBC Oxford.
"Hopefully we might be able to get a change or two in because I'm working hard on doing that - we need it.
"We need to freshen it up."