diff --git a/osm_lcm/lcm.cfg b/osm_lcm/lcm.cfg
index e2e34d4..55f513e 100644
--- a/osm_lcm/lcm.cfg
+++ b/osm_lcm/lcm.cfg
@@ -59,6 +59,7 @@
     host:   mongo       # hostname or IP
     port:   27017
     name:   osm
+    # replicaset: replicaset
     # user:   user
     # password:   password
     # commonkey: "XXXXXX" # password used for encryption of sensible information