diff --git a/docs/development_guidelines.md b/docs/development_guidelines.md
index 1f9ba7e2..cd603293 100644
--- a/docs/development_guidelines.md
+++ b/docs/development_guidelines.md
@@ -36,15 +36,10 @@ SENSOR_TYPES = {
 
 ### File headers
 
-The docstring in the file header should contain a link to the documentation to make it easy to find further information, especially about the configuration or details which are not mentioned in the code.
+The docstring in the file header should describe what the file is about.
 
 ```python
-"""
-Support for MQTT lights.
-
-For more details about this platform, please refer to the documentation at
-https://home-assistant.io/components/light.mqtt/
-"""
+"""Support for MQTT lights."""
 ```
 
 ### Requirements