diff --git a/openbox/.cvsignore b/openbox/.cvsignore
index ac737969..8d36eeca 100644
--- a/openbox/.cvsignore
+++ b/openbox/.cvsignore
@@ -4,3 +4,6 @@ Makefile
 .libs
 .deps
 lex.cparse.c
+y.tab.c
+y.tab.h
+lex.yy.c