diff --git a/ethermess.7 b/ethermess.7
index d900890..b278a39 100644
--- a/ethermess.7
+++ b/ethermess.7
@@ -239,8 +239,9 @@ failed to send, but the implementation may keep it around in case an ACK
 with its message ID is received later.
 .Pp
 After sending the message, regardless of if an ACK was received for it or
-not, the sender should update it's cached value of the next message ID to
-use when sending to the target.
+not, the sender should update its cached value of the next message ID to
+use when sending to the target to the message ID of the message that was
+send plus one.
 .Ss Changing one's own nick or status
 When a user changes their nick or status, they should broadcast (send to
 the MAC FF:FF:FF:FF:FF:FF) the status and nick with the status packet.