Aberdeen boss Derek McInnes insists his side were hard done by referee Willie Collum's penalty decision in their 1-0 defeat to Hamilton Accies.

Alex D'Acol derailed the Dons' winning streak of six games with his early strike from the spot in South Lanarkshire.

McInnes was left stunned by Collum's opinion D'Acol was manhandled by Anthony O'Connor's inside the box.

"I thought it was very soft and having watched it again I don't believe it's a penalty," he said.

"I spoke to Willie about it after the game and he's obviously seen it differently, which can happen. He says he'll look at it again but there is no contact there."

He added: "For me, D'Acol has backed in and my player has done nothing wrong, there's no infringement there, and I think it's very harsh to have a penalty against us.

"And if that's a penalty, then when Kenny McLean gets hauled to the ground near the penalty spot that was even more of a penalty.

"Sometimes they go for you, but the referee sees it differently. He may well view it differently when he sees it again.

"We move on, though, referees can make mistakes but the game is done now."

Despite his frustration at the penalty award McInnes says his side were "more than good enough to get something".

"We expected Hamilton to play in the manner they did, they came out of the traps quickly and I felt we had to be more aggressive early on," he said.

"I think the goal helps them and galvanises their cause, but we finished the first half well and created a few chances.

"While they broke away in the second half and had a couple of opportunities, we changed our shape and I thought we were far better and dominant in the second half and deserved something for our efforts."