* lily/note-collision.cc (check_meshing_chords): if merging heads,

[lilypond.git] / lily / system.cc

diff --git a/lily/system.cc b/lily/system.cc
index ae06cfc9881616c3cfc35d71a16a6e58122febb8..983555cbe2c2393c7674ab7c56dacb9a0d009b3f 100644 (file)
--- a/lily/system.cc
+++ b/lily/system.cc
@@ -76,7 +76,7 @@ System::output_lines ()
        gh_pair_p (s); s = ly_cdr (s))
     {
       Grob * g = unsmob_grob (ly_car (s));
-      if (g->internal_has_interface ("only-prebreak-interface"))
+      if (g->internal_has_interface (ly_symbol2scm ("only-prebreak-interface")))
        {
          /*
            Kill no longer needed grobs.