diff --git a/README.md b/README.md
index e5abf5c7f..2967daba4 100644
--- a/README.md
+++ b/README.md
@@ -61,6 +61,8 @@ yarn storybook
 
 Storybook should now be operational. Experiment with `EmbeddedChat` and its components, observing real-time changes in Storybook.
 
+Note: Please make sure the "Enable CORS" option is ON in your Rocket.Chat server. It can be found in Administration > Settings > General > REST API > Enable CORS. It has to enabled to access the functionality of the app.
+
 #### Custom Rocket Chat Server Configuration
 
 By default, Storybook connects to `http://localhost:3000`. To use a different Rocket Chat server: