diff --git a/ecowitt2mqtt/config.py b/ecowitt2mqtt/config.py
index bd2e20a4..093725b4 100644
--- a/ecowitt2mqtt/config.py
+++ b/ecowitt2mqtt/config.py
@@ -24,8 +24,8 @@
     CONF_DIAGNOSTICS,
     CONF_GATEWAYS,
     CONF_HASS_DISCOVERY,
-    CONF_MQTT_BROKER,
     CONF_MQTT_PASSWORD,
+    CONF_MQTT_TOPIC,
     CONF_MQTT_USERNAME,
     CONF_VERBOSE,
     DEFAULT_BOOLEAN_BATTERY_TRUE_VALUE,
@@ -51,7 +51,7 @@
 CONF_DEFAULT = "default"
 
 REQUIRES_AT_LEAST_ONE_OF = (
-    CONF_MQTT_BROKER,
+    CONF_MQTT_TOPIC,
     CONF_HASS_DISCOVERY,
 )