Joyce says he is clearly loving life at the KC Stadium.
"It's an ideal move for him. It's a great learning curve for him because he's playing week-in and week-out," Joyce told the Hull Daily Mail.
"There were a few clubs keen on taking Robbie in the summer, there was a lot of interest.
"But Robbie knows players over at Hull and we know that Nigel Pearson has treated young players well in the past.
"Plus, it's great for him to be playing in a successful side competing at the top of the Championship. I know he's really enjoying himself."