It came in the 75th minute when striker Francis Green charged to the by-line, crossing for Jeff Hughes to score with a firm downward header at the far post.
It levelled a controversial penalty in the 31st minute when Gareth McAuley was penalised for up-ending Kevin McIntyre. Dutch master Clyde Wijnhard duly seized his chance, scoring his 12th of the campaign with an effortless spot-kick.
Lincoln should have scored on nine minutes when McAuley's close range header was saved by on-loan Manchester United reserve Tommy Lee and the ball fell invitingly to Simon Yeo, who contrived to scuff his effort wide.
The referee disgruntled the visiting fans when he sent Imps boss Keith Alexander to the stands in the 17th minute for kicking the ball away. They were even more annoyed when he pointed to the spot for the penalty award.
Lee was again at his best on the stroke of half-time when he thwarted Yeo with his outstretched legs.
Macc should have extended their lead after the break but Wijnhard and Alan Navarro both skied chances over the bar.
Centre-back Andrew Teague was then denied when a 25-yard volley was blocked by veteran Alan Marriott.
Lincoln drew level on 75 minutes when Green crossed from the by-line for Hughes to score with a header.
Macc might have grabbed the lead in the 84th minute when a Danny Whitaker volley was palmed in the air by Marriott, McIntrye then heading wide from eight yards.