diff --git a/etc/defaults/security.conf b/etc/defaults/security.conf
index 584e204bfc63..7b23178de7bf 100644
--- a/etc/defaults/security.conf
+++ b/etc/defaults/security.conf
@@ -1,4 +1,4 @@
-#	$NetBSD: security.conf,v 1.14 2005/02/05 15:26:37 jdolecek Exp $
+#	$NetBSD: security.conf,v 1.15 2005/05/12 14:02:05 christos Exp $
 #
 # /etc/defaults/security.conf --
 #	default configuration of /etc/security.conf
@@ -31,7 +31,7 @@ pkgdb_dir=/var/db/pkg
 
 check_homes_permit_usergroups=NO
 
-check_devices_ignore_fstypes="!local fdesc kernfs null procfs"
+check_devices_ignore_fstypes="!local fdesc kernfs null procfs ptyfs"
 
 check_mtree_follow_symlinks=NO