Eden Hazard and Rudi Garcia accept Lille must raise their game if they are to take the Ligue 1 title.
The club have opened up a three-point lead at the top of the table, helping to edge them closer to the crown.
They have, however, won only three of their last six fixtures, allowing the chasing pack to remain well within touching distance.
Back-to-back successes have helped their cause, with Marseille and Valenciennes overcome in dramatic fashion.
Hazard proved to be the Lille hero on Sunday as he notched the winner in a 2-1 victory over Valenciennes.
The Belgian starlet is delighted to be playing a leading role in the club's title pursuit, but admits there is still plenty of room for improvement.
"The last two goals I have scored have been very important," he said, having also found the target against Marseille.
"The other teams are putting us under a lot of pressure and we can't afford to slip up at any point.
"We have been a bit lucky recently. We have to take inspiration from that and play better, because we know we can."
Garcia agrees with Hazard, with the Lille coach calling on his troops to prove that they deserve to land the top prize.
He said: "Are we experiencing the luck of future champions? Absolutely not. Champions show more control than we have been doing.
"We have to accept that we have been a bit lucky.
"I have made a few tactical mistakes and I have to make sure that doesn't happen again."