diff --git a/config.json.example b/config.json.example
index b243bf8..c2c270c 100644
--- a/config.json.example
+++ b/config.json.example
@@ -71,7 +71,7 @@
             "searchBase": "change this",
             "searchFilter": "change this",
             "searchAttributes": ["change this"],
-            "usernameField": "change this e.g. uid"
+            "usernameField": "change this e.g. uid",
             "tlsOptions": {
                 "changeme": "See https://nodejs.org/api/tls.html#tls_tls_connect_options_callback"
             }