Inter now holds a nine-point lead with eight games to go in the Serie A.
Rivals in the race for the Scudetto, Juventus, managed only a 3-3 home draw with Chievo.
“The Scudetto is closer now, but it’s not over yet,” said the Special One.
“There are many points still up for grabs and we need at least five more victories. We have been able to improve our lead upon second place even in a round that on paper was very difficult for us.
“Chievo played a great game and, with a bit of luck, we were able to win. We were fortunate, as we won with an own goal and also the penalty on Fabio Quagliarella could have been given.”