diff --git a/conf/config.json.example b/conf/config.json.example
index 16c9550..d9ee314 100644
--- a/conf/config.json.example
+++ b/conf/config.json.example
@@ -32,8 +32,8 @@
             "addGoogleAnalytics": true
         },
         "db": {
-            "username": "",
-            "password": "",
+            "username": "codimd",
+            "password": "codimd",
             "database": "codimd",
             "host": "localhost",
             "port": "5432",