diff --git a/lustre/utils/lconf b/lustre/utils/lconf
index 64fe8a4de25d15667e9e2b0d3d647de420feda89..12a766ac6005f281be0b8e40d98021f569ee74f3 100755
--- a/lustre/utils/lconf
+++ b/lustre/utils/lconf
@@ -3589,6 +3589,7 @@ lconf_options = [
     ('select', "service=nodeA,service2=nodeB ", PARAMLIST),
     ('node',   "Load config for <nodename>", PARAM),
     ('sec',    "security flavor <null|krb5i|krb5p> of client", PARAM),
+    ('mds_sec',    "security flavor <null|krb5i|krb5p> of client", PARAM),
     ('mds_mds_sec', "security flavor <null|krb5i|krb5p> of inter mds's", PARAM),
     ('mds_ost_sec', "security flavor <null|krb5i|krb5p> of mds's-ost's", PARAM),
     ('cleanup,d', "Cleans up config. (Shutdown)"),