diff --git a/etc/udevil.conf b/etc/udevil.conf
index 8be0317..9f0e8e0 100644
--- a/etc/udevil.conf
+++ b/etc/udevil.conf
@@ -237,7 +237,7 @@ default_options_ramfs     = nosuid, noexec, nodev, noatime, uid=$UID, gid=$GID
 # and GID.
 # If you want to forbid remounts, remove 'remount' from here.
 # WARNING:  OPTIONS HERE CAN CAUSE SERIOUS SECURITY PROBLEMS - CHOOSE CAREFULLY
-allowed_options           = nosuid, noexec, nodev, noatime, fmask=0022, dmask=0022, uid=$UID, gid=$GID, ro, rw, sync, remount
+allowed_options           = nosuid, noexec, nodev, noatime, fmask=0022, dmask=0022, uid=$UID, gid=$GID, ro, rw, sync, flush, remount
 allowed_options_nfs       = nosuid, noexec, nodev, noatime, ro, rw, sync, remount, port=*, rsize=*, wsize=*, hard, proto=*, timeo=*, retrans=*
 allowed_options_cifs      = nosuid, noexec, nodev, ro, rw, remount, port=*, user=*, username=*, pass=*, password=*, guest, uid=$UID, gid=$GID, credentials=*
 allowed_options_smbfs     = nosuid, noexec, nodev, ro, rw, remount, port=*, user=*, username=*, pass=*, password=*, guest, uid=$UID, gid=$GID, credentials=*