The Frenchman broke the deadlock in the second half, but then gave away a penalty with a wild attempted clearance.
Spurs are now two points clear of West Ham, who were denied a stoppage-time equaliser by VAR on Sunday in a 1-0 defeat by Arsenal.
Tottenham's goalkeeper Antonin Kinsky made several crucial saves, including one from point-blank range in the 98th minute to deny Sean Longstaff.
The point lifts Spurs to 38 points, but they still have potentially tough games to come against Chelsea and Everton.
