diff --git a/docs/_index.md b/docs/_index.md
index 4c6b55319d..3e9db5bf70 100644
--- a/docs/_index.md
+++ b/docs/_index.md
@@ -111,6 +111,7 @@ sitemap:
     <li><a href="#c1_slide10">Raspberry Pi Zero 2W</a></li>
     <li><a href="#c1_slide11">Numato GPIO Modules</a></li>
     <li><a href="#c1_slide12">PCA9686 I<sup>2</sup>C Interface</a></li>
+    <li><a href="#c1_slide13">Texas Instruments TDA4VM</a></li>
   </ol>
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