Rory McAllister returned from injury to net twice against play off-chasing Berwick Rangers and ensured the Balmoor boys had something to smile about over the summer break.
The home side had a slim chance of sneaking into the final play off berth but had to win against the champions to stand any chance of success.
Against this backdrop Peterhead’s victory tasted all the sweeter for boss Jim McInally.
The manager said: “It was a good way to finish against a team that had plenty to play for.
“There wasn’t a lot in the first half and they scored from a free kick.
“In the second half I switched Ryan Strachan and Bryan Gilfillan, putting Gilly back into defence.
“I felt Ryan then really got a hold of the ball in midfield and started to dictate the game.”
The Blue Toon defence was tested early on with goalkeeper Graeme Smith called into action to save shots from Lee Currie, Scott Dalziel and Darren Lavery.
League Two player of the year nominee Currie then put the Black and Gold ahead after half an hour with a superb free kick.
But McAllister - the man who deservedly pipped Currie to that award - hit back twice in the second half to secure all three points.
In the 61st minute, the 26-year-old cut in from the left-hand side to fire a stinging shot at Billy Bald who was unable to stop McAllister netting from the rebound.
Then with only 10 minutes left on the clock Jonny Fairbairn blew whatever slim play off chance his side had left when he tripped Ryan Strachan in the box.
McAllister - rarely off target from the spot - scored the penalty and settled the game.
After the match Smith said: “It was good to bounce back from last week’s defeat to Stirling Albion with a win.
“I know technically it’s mission complete in regards to winning the league but you don’t want to have two bad performances going into the summer because it’s a long time fore you get the chance to put it right,
“I don’t think Lee Currie’s freekick was unsaveable but it was right inside the post and sometimes you’ve just got to take your hat off to people and say good strike.
“To have the best defensive record in the league for the second season running is great.”
McInally added: “Apart from a scare when they hit the underside of the bar, I though we played as well as you can do at this stage of the season.
“We showed a good attitude and Rory scored a really good goal after cutting in from the left-hand side.”
Peterhead: Smith, Sharp, Noble, Smith, Strachan, Ross, Cox (Rodgers 69), Cowie, McAllister (Brown 86) McLaren (McCann 74), Gilfillan; Unused: Jarvie (GK), Richardson, Low, McGlinchey;
Attendance - 586