diff --git a/docs/developer-guide/environment-variables.mdx b/docs/developer-guide/environment-variables.mdx
index d798faa6c7..6a9adad69b 100644
--- a/docs/developer-guide/environment-variables.mdx
+++ b/docs/developer-guide/environment-variables.mdx
@@ -41,6 +41,7 @@ The former build-time variables map to the new runtime variables as follows:
 `UI_CLOUD_ENABLED` is a plain runtime boolean flag that enables Prowler Cloud behavior when set to the exact string `"true"` and defaults to off; unlike the other renamed variables it has no legacy fallback, so `NEXT_PUBLIC_IS_CLOUD_ENV` is no longer read.
 
 `UI_SELF_REGISTRATION_ENABLED` is a runtime opt-out flag that Prowler Local Server reads only when `UI_CLOUD_ENABLED` is `"true"`. It defaults to on and turns off when set to `"false"`, matched case-insensitively so the same value can be shared with a backend setting written `False`. When it is off, the sign-up page only opens with an invitation token, the sign-in page drops its "Sign up" link, and the profile hides "Create organization"; invited users can still complete their registration. Outside a Prowler Cloud deployment the flag is ignored and account creation stays open.
+
 ## Registry UI Rollout and Rollback
 
 `UI_REGISTRY_ENABLED` is an optional runtime flag for Prowler Cloud and Private Cloud. Registry is eligible only when both `UI_CLOUD_ENABLED` and `UI_REGISTRY_ENABLED` are the exact string `"true"` and the current user has the backend-authorized `manage_registry` permission. Unset, `"false"`, or malformed values fail closed. The flag defaults to off and is not a replacement for backend authorization. Registry access is independent of billing; Private Cloud can use it with `CLOUD_BILLING_ENABLED=false`.