diff --git a/source/_components/vacuum.mqtt.markdown b/source/_components/vacuum.mqtt.markdown
index d678b09ee0c..12c4e2970e3 100644
--- a/source/_components/vacuum.mqtt.markdown
+++ b/source/_components/vacuum.mqtt.markdown
@@ -158,6 +158,10 @@ payload_not_available:
   required: false
   type: string
   default: offline
+json_attributes_topic:
+  description: The MQTT topic subscribed to receive a JSON dictionary payload and then set as sensor attributes. Usage example can be found in [MQTT sensor](/components/sensor.mqtt/#json-attributes-topic-configuration) documentation.
+  required: false
+  type: string
 {% endconfiguration %}
 
 ### {% linkable_title Full configuration example %}