Millwall manager Kenny Jackett thought his side produced their best display under his stewardship in the 2-1 victory at runaway League One leaders Swansea City.
Goals from Lewis Grabban and Jay Simpson helped the Lions move four points clear of the relegation zone and Jackett is demanding more of the same.
"We played very well. It was the best performance since I've been here," he said.
"We were very disciplined, strong and had a real determined look about us.
"Hopefully this is something we can build on. We can't afford to sit back though.
"We've got a game at Yeovil on Tuesday and, while this is a very good victory that we deserved, we have to focus on the next match now."