Frail said he was delighted with the three points against St Mirren

Saints were incensed when Michael Stewart earned and scored a penalty after tumbling under David Van Zanten's challenge in the second-half.

"When they come from us we'll take them. But I certainly don't think it was a dive from Stewart," said Frail.

"We were solid and pretty much controlled the game, although St Mirren pressured us a bit after they scored."

Interview: Hearts assistant coach Stevie Frail

St Mirren were also aggrieved when they appealed for a penalty when Eggert Jonsson appeared to foul Stephen O'Donnell.

Frail said: "Whether St Mirren could have got one at the other end, I don't know.

"I don't make the decisions either way so when they come we will take them.

"I'm just delighted to get the three points."