diff --git a/heating/README.md b/heating/README.md
index 501567c..afc41c9 100644
--- a/heating/README.md
+++ b/heating/README.md
@@ -7,4 +7,4 @@ The rules also check if someone is at home (I use presence detection by wifi, se
 
 Btw: With HomeMatic devices it does not make much sense in my eyes to turn off the heaters, so I just lower the temperature to a basic temperature which I want inside all the time, even if there is nobody at home or in the room.
 
-* **heizungen.items**: Put this file into your */etc/openhab2/rules* directory and modify it for your specific setup.
\ No newline at end of file
+* **heizungen.rules**: Put this file into your */etc/openhab2/rules* directory and modify it for your specific setup.
\ No newline at end of file