stem-begin-position is not a length

diff --git a/scm/define-grob-properties.scm b/scm/define-grob-properties.scm
index d9a38bfd5ff7ddf7954a0c961676122daaaa97de..ecd67e5b122df92430f7465fc9f61bc1b3e1b67d 100644 (file)
--- a/scm/define-grob-properties.scm
+++ b/scm/define-grob-properties.scm
@@ -838,7 +838,7 @@ the @code{staff-staff-spacing} property of the staff's
 structure.")
      (stem-attachment ,number-pair? "An @code{(@var{x} . @var{y})}
 pair where the stem attaches to the notehead.")
-     (stem-begin-position ,ly:dimension? "User override for the
+     (stem-begin-position ,number? "User override for the
 begin position of a stem.")
      ;;[TODO: doco]
      (stem-spacing-correction ,number? "Optical correction amount for