Real hair = gh_scm2double (me->get_grob_property ("hair-thickness"));
Real fatline = gh_scm2double (me->get_grob_property ("thick-thickness"));
- Real staffline = me->get_paper ()->get_var ("linethickness");
+ Real staffline = me->get_paper ()->get_realvar (ly_symbol2scm ("linethickness"));
Real staff_space = Staff_symbol_referencer::staff_space (me);
kern *= staffline;