Hi, the definitions for \setcounter and everything until \countersubs need a \else for the subcounter values. \permanent\tolerant\protected\def\setcounter[#1]#*[#2]#*[#3]%   {\ifarguments\or\or      \clf_setcounter {\namedcounterparameter{#1}\s!name}\numexpr#2\relax\or +  \else \clf_setsubcounter{\namedcounterparameter{#1}\s!name}\numexpr#2\relax\numexpr#3\relax    \fi} Wolfgang