A week after winning at Hockenheim, the Spaniard actually extended his 34 point lead in the championship to 40 points in Hungary, despite finishing just fifth.
But the Ferrari driver confided to Spain's AS newspaper: "Actually we should have finished seventh."
He was obviously referring to McLaren's Jenson Button - sixth in Hungary a week after finishing second in Germany - and also his closest points rival Mark Webber, who had a bad weekend and finished a poor eighth on Sunday.
"We know that Red Bull, McLaren and Lotus have faster cars," Alonso is quoted by the Italian agency AGI.
"We have changes to make ahead of the next races. I think we have to stay focused, not worried.
"We must go on holiday knowing that our lead is not enough to win the championship."