diff --git a/Documentation/NuttxPortingGuide.html b/Documentation/NuttxPortingGuide.html
index 62f795887f2..c9656a6c51a 100644
--- a/Documentation/NuttxPortingGuide.html
+++ b/Documentation/NuttxPortingGuide.html
@@ -4923,10 +4923,10 @@ build
     <code>CONFIG_FTPD_SERVERID</code>: The server name to use in FTP communications.  Default: "NuttX FTP Server"
   </li>
   <li>
-    <code>CONFIG_FTPD_CMDBUFFERSIZE</code>: The maximum size of one command.  Default: 512 bytes.
+    <code>CONFIG_FTPD_CMDBUFFERSIZE</code>: The maximum size of one command.  Default: 128 bytes.
   </li>
   <li>
-    <code>CONFIG_FTPD_DATABUFFERSIZE</code>: The size of the I/O buffer for data transfers.  Default: 2048 bytes.
+    <code>CONFIG_FTPD_DATABUFFERSIZE</code>: The size of the I/O buffer for data transfers.  Default: 512 bytes.
   </li>
   <li>
     <code>CONFIG_FTPD_WORKERSTACKSIZE</code>: The stacksize to allocate for each FTP daemon worker thread.  Default:  2048 bytes.