diff --git a/Documentation/NuttxPortingGuide.html b/Documentation/NuttxPortingGuide.html
index d282ba3186..93a10ef460 100644
--- a/Documentation/NuttxPortingGuide.html
+++ b/Documentation/NuttxPortingGuide.html
@@ -422,7 +422,7 @@
   </li>
   <li>
     <i>Chip/SoC specific files</i>.
-    Each processor processor architecture is embedded in chip or <i>System-on-a-Chip</i> (SoC) architecture.
+    Each processor architecture is embedded in chip or <i>System-on-a-Chip</i> (SoC) architecture.
     The full chip architecture includes the processor architecture plus chip-specific interrupt logic,
     clocking logic, general purpose I/O (GPIO) logic, and specialized, internal peripherals (such as UARTs, USB, etc.).
     <p>