diff --git a/Forum-Sharing-Client.md b/Forum-Sharing-Client.md
index 50e5a68..e2397ef 100644
--- a/Forum-Sharing-Client.md
+++ b/Forum-Sharing-Client.md
@@ -22,7 +22,7 @@ The protocol uses five message types.
 
 **0: INVITE** - Sent by either party to start or restart a session. The message body is a BDF list with four elements: `messageType` (int), `previousMessageId` (unique ID or null), `descriptor` (list), and `text` (string or null).
 
-`previousMessageId` is the ID of the previous message in this session, if any. `descriptor` is the [descriptor of the forum](Forum-Client#group-identifiers) being shared. `text` is an optional message from the inviter to the invitee. The forum ID must be calculated from the descriptor, as it is used by subsequent messages in the session.
+`previousMessageId` is the ID of the previous message in this session, if any. `descriptor` is the [descriptor of the forum](Forum-Client#group-identifiers) being shared. The forum ID must be calculated from the descriptor, as it is used by subsequent messages in the session. `text` is an optional message from the inviter to the invitee explaining the invitation.
 
 The sender sets the forum's visibility to VISIBLE when sending an invite message.