diff --git a/Documentation/NuttShell.html b/Documentation/NuttShell.html
index ecedd4ca6df..1d284dbea7a 100644
--- a/Documentation/NuttShell.html
+++ b/Documentation/NuttShell.html
@@ -3277,7 +3277,7 @@ nsh>
   </tr>
   <tr>
     <td><b><code>mkfifo</code></b></td>
-    <td><code>CONFIG_NFILE_DESCRIPTORS</code> &gt; 0 &amp;&amp; <code>CONFIG_PIPES</code> &amp;&amp; <code>CONFIG_DEV_PIPE_SIZE</code> &gt; 0</td>
+    <td><code>CONFIG_NFILE_DESCRIPTORS</code> &gt; 0 &amp;&amp; <code>CONFIG_PIPES</code> &amp;&amp; <code>CONFIG_DEV_FIFO_SIZE</code> &gt; 0</td>
     <td><code>CONFIG_NSH_DISABLE_MKFIFO</code></td>
   </tr>
   <tr>