diff --git a/src/main/resources/opc-config.json b/src/main/resources/opc-config.json
index b7cc2f21f..eb483ad27 100644
--- a/src/main/resources/opc-config.json
+++ b/src/main/resources/opc-config.json
@@ -3,6 +3,7 @@
     {
       "applicationName": "Thingsboard OPC-UA client",
       "applicationUri": "",
+      "host": "localhost",
       "port": 49320,
       "scanPeriodInSeconds": 10,
       "timeoutInMillis": 5000,
@@ -15,7 +16,7 @@
         "location": "example.pfx",
         "password": "secret",
         "alias": "gateway",
-        "keyPassword": "password"
+        "keyPassword": "secret"
       },
       "mapping": [
         {