return select_pango_font (layout, chain);
else
#endif
- if (scm_instance_p (name))
+ if (scm_is_true (scm_instance_p (name)))
{
SCM base_size = scm_slot_ref (name, ly_symbol2scm ("default-size"));
SCM vec = scm_slot_ref (name, ly_symbol2scm ("size-vector"));