diff --git a/source/_integrations/event.mqtt.markdown b/source/_integrations/event.mqtt.markdown
index 34c2b7b83fb..f386c06d8bc 100644
--- a/source/_integrations/event.mqtt.markdown
+++ b/source/_integrations/event.mqtt.markdown
@@ -167,7 +167,7 @@ qos:
   type: integer
   default: 0
 state_topic:
-  description: The MQTT topic subscribed to receive JSON event payloads. The JSON payload should contain the `event_type` element. The event type should be one of the configured `event_types`.
+  description: The MQTT topic subscribed to receive JSON event payloads. The JSON payload should contain the `event_type` element. The event type should be one of the configured `event_types`. Note that replayed retained messages will be discarded.
   default: None
   required: true
   type: string