diff --git a/driver/.cvsignore b/driver/.cvsignore
index e2c2df310..65addcef4 100644
--- a/driver/.cvsignore
+++ b/driver/.cvsignore
@@ -10,3 +10,6 @@ cfparse.output
 cflexor.c
 foo.*
 iverilog
+iverilog.ps
+iverilog.pdf
+tmp.pdf