A dog which attacked a four-year-old partially sighted boy in Flintshire was a bullmastiff, North Wales Police have confirmed.
Thomas Mile was attacked while out walking with his father
It was originally thought that Thomas Miles, four, had been mauled by a dog of the Rhodesian Ridgeback breed.
But North Wales Police have now confirmed that the animal, which was destroyed after the attack, was in fact a bullmastiff.
The boy suffered serious leg and arm wounds and was treated in hospital.
The incident was on the Tan y Felin estate at Greenfield near Holywell on the evening of 24 April.
Thomas and his father Stephen, who is also partially sighted, was walking back from a chip shop when the dog attacked.
An off-duty police officer - whose house Mr Miles managed to run to - also needed hospital treatment.
Mr Miles has told police he wants to prosecute the owner of the dog. Police are still investigating.