diff --git a/README.md b/README.md
index 6375b72d..349aa0ff 100644
--- a/README.md
+++ b/README.md
@@ -493,7 +493,7 @@ Only the icons listed in the [Icon Cheatsheet](https://htmlpreview.github.io/?ht
 ```
 
 #### Fahrenheit on cardThermo
-```
+```yaml
       - type: cardThermo
         entity: climate.example_item
         temperatureUnit: fahrenheit