diff --git a/homeassistant/components/automation/mqtt.py b/homeassistant/components/automation/mqtt.py
index 3f85792f907..706d97824b4 100644
--- a/homeassistant/components/automation/mqtt.py
+++ b/homeassistant/components/automation/mqtt.py
@@ -1,8 +1,10 @@
 """
 homeassistant.components.automation.mqtt
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
 Offers MQTT listening automation rules.
+
+For more details about this automation rule, please refer to the documentation
+at https://home-assistant.io/components/automation.html#mqtt-trigger
 """
 import logging