diff --git a/gateway/config.example.json b/gateway/config.example.json
index 86fe46b..84a83cd 100644
--- a/gateway/config.example.json
+++ b/gateway/config.example.json
@@ -1,15 +1,10 @@
 {
-  "gateway_id": "gateway_lausanne_01",
+  "gateway_id": "gateway_example",
   "mqtt": {
-    "broker": "localhost",
+    "broker": "mqtt.example.local",
     "port": 1883
   },
   "ble": {
-    "service_uuid": "ef680100-9b35-4933-9b10-52ffa9740042",
-    "characteristics": {
-      "temperature": "ef680201-9b35-4933-9b10-52ffa9740042",
-      "co2":         "ef680204-9b35-4933-9b10-52ffa9740042",
-      "humidity":    "ef680203-9b35-4933-9b10-52ffa9740042"
-    }
+    "service_uuid": "ef680100-9b35-4933-9b10-52ffa9740042"
   }
 }