diff --git a/opcua2mqtt/config.json b/opcua2mqtt/config.json
index ea12576..d6829a0 100644
--- a/opcua2mqtt/config.json
+++ b/opcua2mqtt/config.json
@@ -11,7 +11,7 @@
     "opcua": [
         {
             "enabled": "true",
-            "type": "structured",
+            "type": "flat",
             "url": "opc.tcp://172.16.3.60:4840",
             "name": "apl",
             "delay": 1.0,
@@ -25,6 +25,7 @@
         },
         {
             "enabled": "false",
+            "type": "flat",
             "url": "opc.tcp://192.168.254.5:4863",
             "name": "sh",
             "delay": 1.0,