#include "item.hh"
#include "paper-def.hh"
-LY_DEFINE(ly_set_grob_property,"ly-set-grob-property", 3, 0, 0,
+LY_DEFINE(ly_set_grob_property,"ly-set-grob-property!", 3, 0, 0,
(SCM grob, SCM sym, SCM val),
"Set @var{sym} in grob @var{grob} to value @var{val}")
{