diff --git a/main.cpp b/main.cpp
index 595fe25..0db355d 100644
--- a/main.cpp
+++ b/main.cpp
@@ -44,11 +44,12 @@ static void send_sensor(TCPSocket* socket, uint8_t id, bool state)
 
 	lastState = state;
 
-	std::string json = "{ \"Type\": \"Sensor\", \"SensorType\": 254, ";
+	std::string json = "{ \"MessageType\": \"SensorUpdate\", \"Data\": [{ \"Type\": \"Sensor\", \"SensorType\": 254, ";
 	json.append("\"Id\": " + std::to_string(static_cast<unsigned int>(id)) + ", ");
-	json.append("\"Field\":" + std::to_string(static_cast<unsigned int>(state)));
-	json.append(" }\n");
+	json.append("\"Field\": " + std::to_string(static_cast<unsigned int>(state)));
+	json.append(" }] }\n");
 	std::string sendbuf(MSG_STRING + std::to_string(json.length()) + "\n" + json);
+	Log(Log::DEBUG)<<"Sending: \n"<<sendbuf;
 	socket->send(sendbuf.c_str(), sendbuf.size());
 }