Lucerne have failed to take full advantage of Super League leaders Basel’s inactivity, by being held to a 1-1 draw at Thun.
With Basel’s game at Lausanne postponed because of the weather, Lucerne could have cut the gap at the top to five points.
But they fell behind in the 72nd minute on Saturday thanks to Marco Schneuwly’s strike.
Substitute Nico Siegrist entered the action in the 75th minute and he grabbed the equaliser barely a minute later.