diff --git a/web/support/kb/openstack/rclone_quick_tutorial.rst b/web/support/kb/openstack/rclone_quick_tutorial.rst
index e83456b606742b08d9f4c6ae295adf2a5bae9e00..4b84120329892cab37fa1a9eb66fef8769842f4b 100644
--- a/web/support/kb/openstack/rclone_quick_tutorial.rst
+++ b/web/support/kb/openstack/rclone_quick_tutorial.rst
@@ -49,6 +49,8 @@ Add the following text to *rclone.conf*::
 	application_credential_id = <insert here the content of OS_APPLICATION_CREDENTIAL_ID>
 	application_credential_secret = <insert here the content of OS_APPLICATION_CREDENTIAL_SECRET>
 
+.. warning::
+	Mind that ``env_auth = true`` takes variables from environment, so you shouldn't insert it in this case.
     
 Check configuration
 ^^^^^^^^^^^^^^^^^^^