diff --git a/src/lib/cue_parse_prefix.h b/src/lib/cue_parse_prefix.h
index f63c85b..cb2d2e8 100644
--- a/src/lib/cue_parse_prefix.h
+++ b/src/lib/cue_parse_prefix.h
@@ -1,5 +1,5 @@
 /*
- * cue_parse_prefix.h
+ * cue_parse_prefix.h -- yacc symbol redefinitions (for cue parser)
  *
  *
  * Copyright (C) 2004, 2005 Svend Sorensen
diff --git a/src/lib/toc_parse_prefix.h b/src/lib/toc_parse_prefix.h
index 89152ce..aace2f1 100644
--- a/src/lib/toc_parse_prefix.h
+++ b/src/lib/toc_parse_prefix.h
@@ -1,5 +1,5 @@
 /*
- * toc_parse_prefix.h
+ * toc_parse_prefix.h -- yacc symbol redefinitions (for toc parser)
  *
  * Copyright (C) 2004, 2005 Svend Sorensen
  * For license terms, see the file COPYING in this distribution.