diff --git a/Documentation/NuttX.html b/Documentation/NuttX.html
index 700137d1b90..6b2a545d988 100644
--- a/Documentation/NuttX.html
+++ b/Documentation/NuttX.html
@@ -452,7 +452,7 @@
   <td><br></td>
   <td>
     <p>
-      <li>TCP/IP, UDP, ICMP stacks.</li>
+      <li>TCP/IP, UDP, ICMP, IGMPv2 (client) stacks.</li>
     </p>
 </tr>
 <tr>