Jewell, who is on the look out for a third keeper knowing that Stockdale could be recalled at 24 hours notice, believes the Yorkshireman will only get better.
"It has been difficult for him, it has been like shooting practice in a couple of games, so he's done very well," said the Town manager.
"He is a terrific goalkeeper, but he is still learning. He's 25 but it's not as if he has hundreds of games behind him. He'll get better."