David Ellam, 52, was attacked as he walked his Yorkshire terrier, Rolo, near his home in Sheepridge, Huddersfield, last August.
At Leeds Crown Court, Aaron Joseph, 29, denied being the owner of a dog that caused injury while dangerously out of control in a public place.
Mr Joseph was released on bail and a trial date has been set for 5 February.
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Judge Peter Collier QC, the Recorder of Leeds, said he hoped the trial date could be brought forward.
Police were called to Riddings Road on 15 August, and Mr Ellam was taken to Huddersfield Royal Infirmary where he was later pronounced dead.
Mr Joseph, of Riddings Road, pleaded guilty to possessing a quantity of cannabis on the same day.
A man has denied being the owner of a dog which attacked and fatally injured a neighbour.