diff --git a/AUTHORS b/AUTHORS
index eb3455ef..d4ad7994 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -16,9 +16,6 @@ build-aux/compile-all.scm
 Included verbatim from gnulib
 build-aux/gitlog-to-changelog
 
-Nyacc C99 parser
-module/nyacc
-
 Portable hygienic pattern matcher
 module/mes/match.scm