diff --git a/Documentation/NuttShell.html b/Documentation/NuttShell.html
index 98fd6d460df..a328e6e6d2f 100644
--- a/Documentation/NuttShell.html
+++ b/Documentation/NuttShell.html
@@ -1028,6 +1028,9 @@ done
   <b>Environment Variables:</b>
 </p>
 <ul><table>
+  <tr>
+    <td><b><code>PATH</code></b></td><td>The default path in the file systems to look for executable, binary programs working directory</td>
+  </tr>
   <tr>
     <td><b><code>PWD</code></b></td><td>The current working directory</td>
   </tr>
@@ -5825,6 +5828,7 @@ xxd -i romfs_img >nsh_romfsimg.h
   <li><a href="#cmdpasswd"><code>passwd</code></a></li>
   <li><a href="#passwdfiles">Password File</a></li>
   <li><a href="#passwdromfs">Password File, ROMFS</a></li>
+  <li><a href="#environvars"><code>PATH</code></a></li>
   <li><a href="#builtinping"><code>ping</code></a></li>
   <li><a href="#builtinping"><code>ping6</code></a></li>
   <li><a href="#cmdpoweroff"><code>poweroff</code></a></li>