The Italian said his side's result against Troyes gave him a lot more satisfaction than the performance as they opened up a 10-point lead in Ligue 1
Blaise Matuidi struck a 65th-minute winner to earn three workmanlike points for the capital club, who now sit 10 points clear of Olympique de Marseille at the top of the table having played a game more.
Ancelotti admitted the performance had been below-par from his players but insisted the result was a significant step in their bid to become French champions for the first time since 1994.
“It is a very important victory,” Ancelotti was quoted as saying by the club's official website. “With six games remaining it is another step towards the title.
"Only the result counts for us because that performance cannot really provide satisfaction.
“Sometimes the most important thing is just to win. Especially after the Champions League game [against Barcelona], we had very little time for physical recovery.
“It was therefore vital to take three points for the rest of the season.”
Troyes coach Jean-Marc Furlan said his side’s failure to score in the opening stages of the match eventually proved decisive in defeat.
"I'm disappointed for my players,” he said. "I regret that we didn't score in the first half."
PSG’s title rivals Marseille face a trip to Lille on Sunday.