diff --git a/.cvsignore b/.cvsignore
index 6c50a7e2..33d92999 100644
--- a/.cvsignore
+++ b/.cvsignore
@@ -4,9 +4,20 @@ Makefile
 Makefile.in
 aclocal.m4
 bison
+bison.aux
+bison.cp
+bison.cps
+bison.dvi
+bison.fn
 bison.info
 bison.info-[0-9]*
+bison.ky
+bison.log
+bison.pg
 bison.simple
+bison.toc
+bison.tp
+bison.vr
 config.cache
 config.h
 config.hin