diff --git a/docs/topindex.html b/docs/topindex.html
index 3cbf216155..f32f3cea6b 100644
--- a/docs/topindex.html
+++ b/docs/topindex.html
@@ -48,7 +48,7 @@
         {% endif %}
       </p>
       <p class="biglink">
-        <a class="biglink" href="{{ pathto("genrst/index") }}">Micropython Differences</a><br/>
+        <a class="biglink" href="{{ pathto("genrst/index") }}">MicroPython Differences</a><br/>
         <span class="linkdescr">MicroPython operations which differ from CPython</span>
       </p>
     </td>