David Arnold wrote: > \Tindex #1->\index > {#1}#1 > ... > l.104 \setnumber > [page]{\pagenumberExercisesOneTwo} > > If I go into the offending file and comment out the line: The problem appears related to the index (\Tindex), not the \setnumber command, so you may have been looking at the wrong spot. Greetings, Taco