diff --git a/rc/bin/inst/bootsetup b/rc/bin/inst/bootsetup
index a1a432576..190d69ec7 100755
--- a/rc/bin/inst/bootsetup
+++ b/rc/bin/inst/bootsetup
@@ -48,7 +48,7 @@ case go
 				echo -n $"i'='
 				cat $i
 				echo
-			} | grep -v '(apm0|e820|bootfile|bootargs|nvram|mouseport|monitor|vgasize)'
+			} | grep -v '(apm0|e820|bootfile|bootargs|nvram|mouseport|monitor|vgasize|cdboot)'
 		} >/tmp/plan9.ini
 	}