diff --git a/patacrep/build.py b/patacrep/build.py
index b003a0ee..d5b922d5 100644
--- a/patacrep/build.py
+++ b/patacrep/build.py
@@ -159,7 +159,7 @@ class Songbook:
 
     def requires_lilypond(self):
         """Tell if lilypond is part of the bookoptions"""
-        return 'lilypond' in iter_bookoptions(self._config)
+        return 'lilypond' in iter_bookoptions(self._raw_config)
 
 def _log_pipe(pipe):
     """Log content from `pipe`."""