diff --git a/en/docs/development/gateway-LAN-communication.md b/en/docs/development/gateway-LAN-communication.md
index 95e2f14..4eac467 100644
--- a/en/docs/development/gateway-LAN-communication.md
+++ b/en/docs/development/gateway-LAN-communication.md
@@ -126,7 +126,7 @@ The gateway heatbeat is sent via **multicast** to **(IP: 224.0.0.50 Port: 9898**
     "model":"gateway.v3",
     "sid":"xxxxxxxx",
     "token":"1234567890abcdef",   //random string generated by the gateway
-    "params":[{"ip":"172.22.4.130"}]  //Gateway IP address
+    "data": {"ip":"172.22.4.130"}  //Gateway IP address
  }
 ```