diff --git a/user_manual/talk/talk_basics.rst b/user_manual/talk/talk_basics.rst
index c63f9cecf..9a11dec28 100644
--- a/user_manual/talk/talk_basics.rst
+++ b/user_manual/talk/talk_basics.rst
@@ -79,6 +79,8 @@ Managing a conversation
 
 You are always moderator in your new conversation. In the participant list you can promote other participants to moderators using the ``...`` menu to the right of their user name, assign them custom permissions or remove them from the conversation.
 
+Changing permissions of a user that joined a public conversation will also permanently add them to the conversation.
+
 .. image:: images/participant-menu.png
 
 Moderators can configure the conversation. Select ``Conversation settings`` from the gear menu of the conversation on the top to access the settings.