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[lilypond.git] / lily / break-substitution.cc

diff --git a/lily/break-substitution.cc b/lily/break-substitution.cc
index 2028226447841ca161048899d32d7aa6ea6035f1..f26e9510bc9dd565c7288ea83c182bee8a49a895 100644 (file)
--- a/lily/break-substitution.cc
+++ b/lily/break-substitution.cc
@@ -51,7 +51,7 @@ substitute_grob (Grob *sc)
   else
     {
       System *line
-        = dynamic_cast<System *> (Grob::unsmob (break_criterion));
+        = derived_unsmob<System> (break_criterion);
       if (sc->get_system () != line)
         sc = sc->find_broken_piece (line);