"We got through there today and a cup run will also give us confidence," he said after the game.
"We have some talented players at the club, but we can be more ruthless in front of goal and took a few too many chances at the back."
When asked about the draw with Partick Thistle in the next round he added: "It is a home tie, which we were hoping for.
"It will be a difficult game. Partick Thistle are a good team and they are a league above us at the moment."