diff --git a/homeassistant/components/sensor/wunderground.py b/homeassistant/components/sensor/wunderground.py
index 509a1e91ffa..21ebcd1107b 100644
--- a/homeassistant/components/sensor/wunderground.py
+++ b/homeassistant/components/sensor/wunderground.py
@@ -1,4 +1,9 @@
-"""Support for Wunderground weather service."""
+"""
+Support for Weather Underground weather service.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/sensor.wunderground/
+"""
 from datetime import timedelta
 import logging
 import requests