diff --git a/Protocol.md b/Protocol.md
index 6c2ce9a..9bfcffc 100644
--- a/Protocol.md
+++ b/Protocol.md
@@ -183,6 +183,11 @@ Informs the client that authentication has succeeded.
         <td>Default channel the user will join following this packet</td>
         <td></td>
     </tr>
+    <tr>
+        <td><code>int</code></td>
+        <td>Maximum length for messages sent by the client</td>
+        <td></td>
+    </tr>
 </table>