He said: "You can't talk about the gap, there are so many games still to go.
"The Old Firm game is two weeks away, it is not the right time to speak about this.
"But of course we have to be close to them, within one win so everything can change.
"But you never know what is going to happen week-to-week.
"We were disappointed to lose to Hearts but we made lots of chances and have to take the positives.
"We've found our form in the last six or seven weeks and we have created a lot of chances and scored goals.
"We are hopefully going to continue like this in the next weeks and hopefully months, and I think we will have the strength to go to the end.
"Let's see who has the quality to last to the end."