diff --git a/config.sample.json b/config.sample.json
index 3c513f7ab2..9be92fa747 100644
--- a/config.sample.json
+++ b/config.sample.json
@@ -10,5 +10,6 @@
         "servers": [
             "matrix.org"
         ]
-    }
+    },
+    "welcomeUserId": "@RiotBot:matrix.org"
 }