diff --git a/docs/api.md b/docs/api.md
index ac1202a4..078b7c31 100644
--- a/docs/api.md
+++ b/docs/api.md
@@ -357,7 +357,8 @@ Adjust various settings related to the app display.
 
 ### JSON Properties
 
-You can adjust each property in the JSON object according to your preferences. Including a property is optional.
+You can adjust each property in the JSON object according to your preferences. Including a property is optional. 
+✔ Please note, that all keynames are case sensitiv.
 
 | Key           | Type                      | Description                                                                                         | Value Range                                        | Default |
 | ------------- | ------------------------- | --------------------------------------------------------------------------------------------------- | -------------------------------------------------- | ------- |