diff --git a/website/docs/r/config_ui_custom_messages.html.md b/website/docs/r/config_ui_custom_messages.html.md
index 85dd0a1d7..be6bbc67c 100644
--- a/website/docs/r/config_ui_custom_messages.html.md
+++ b/website/docs/r/config_ui_custom_messages.html.md
@@ -10,6 +10,8 @@ description: |-
 
 Manages a UI custom message in Vault. Custom messages are displayed in the Vault UI either on the login page or immediately after succesfully logging in.
 
+**Note** this feature is available only with Vault Enterprise.
+
 ## Example Usage
 
 ```hcl