diff --git a/src/platform/arduino/MQTTTelemetry.cpp b/src/platform/arduino/MQTTTelemetry.cpp
index c390e81..10def86 100644
--- a/src/platform/arduino/MQTTTelemetry.cpp
+++ b/src/platform/arduino/MQTTTelemetry.cpp
@@ -83,7 +83,7 @@ MQTTTelemetry::handleEventOnline(const InputEvent& evt)
       char buf[1024];
       serializeJson(configJson, buf, sizeof(buf));
       Log.verbose("Publish %s %s", configTopic.c_str(), buf);
-      m_mqtt.publish(configTopic.c_str(), buf);
+      m_mqtt.publish(configTopic.c_str(), buf, true);
       m_mqtt.subscribe(m_cmdTopic);
     } else {
       Log.warning("Could not connect to MQTT");