Millwall boss Neil Harris lauded the "unison" between players and supporters as The Lions rounded off their Sky Bet Championship campaign with a 1-0 victory over Aston Villa on Sunday afternoon as The Den.
Shaun Williams' 30th-minute penalty-kick set Millwall on their way against Steve Bruce's side and although Lee Gregory missed a second spot-kick late on, The Lions held on to finish eighth in their first year back in the second tier.
"It would have been nice to have finished as high up the League as possible, but what you saw there just shows how far we've come as a football club in the last few years," he told millwallfc.co.uk.
"The fans appreciate the efforts and contrubutions the players have made, as well as the ability they've shown and the results they've got on the road and here at The Den. [The lap of honour] was also an opportunity for myself, the staff and players to thank the fans.
"The atmospheres we've played in here have been top draw. The fans have come and enjoyed it and got behind the team. Because they're seeing a Millwall team, they'll always come and support them. Again, today was a Millwall performance in front of a Millwall crowd and you saw that unison at the end.
"We need the fans. We're playing against quality teams at this level with great coaches and fantastic players - hugely expensive squads.
"We can't always have the ball. When we're working hard and trying to keep in our shape, we need the supporters to stick with us and they've done that this year and last year."
The boss signed off by looking ahead to the 2018/19 campaign.
"The test and challenge for us now is to be better. We've had a great year and I've told the players to be proud of what they've achieved, but we've got to come back better. I've got to recruit players that can take us forward, keep the squad of players we've got and take those small steps every transfer window."