diff --git a/Documentation/NuttX.html b/Documentation/NuttX.html
index 5d9d3af3ba..f48994babd 100644
--- a/Documentation/NuttX.html
+++ b/Documentation/NuttX.html
@@ -373,7 +373,7 @@
   <td><br></td>
   <td>
     <p>
-      <li>May be built either as an open, flat embedded RTOS or as a separtely built, secure micro-kernel with a system call interface.</li>
+      <li>May be built either as an open, flat embedded RTOS or as a separately built, secure micro-kernel with a system call interface.</li>
     </p>
 </tr>