"We're enjoying it and we always set out to concede no goals, although there'll come a point when we let one in again," he told Bayern's official website.
"I like the fact the team is delighted because we've kept a clean sheet. We always go out looking to play our football, and we have to keep it up. We're delighted with the victory."
The result saw Bayern extend their lead to 18 points at the top of the Bundesliga table.