diff --git a/_sources/advanced/index.rst.txt b/_sources/advanced/index.rst.txt
index fd1da72..5e9a8cd 100644
--- a/_sources/advanced/index.rst.txt
+++ b/_sources/advanced/index.rst.txt
@@ -9,6 +9,7 @@ This section describes the various features and options of ClipKIT.
 - Output_
 - Log_
 - Complementary_
+- Codon_
 - `Sequence Type`_
 - `All options`_
 
diff --git a/advanced/index.html b/advanced/index.html
index d2c4cb3..428c5e2 100644
--- a/advanced/index.html
+++ b/advanced/index.html
@@ -173,6 +173,7 @@ <h1>Advanced Usage<a class="headerlink" href="#advanced-usage" title="Permalink
 <li><p><a class="reference internal" href="#output">Output</a></p></li>
 <li><p><a class="reference internal" href="#log">Log</a></p></li>
 <li><p><a class="reference internal" href="#complementary">Complementary</a></p></li>
+<li><p><a class="reference internal" href="#codon">Codon</a></p></li>
 <li><p><a class="reference internal" href="#sequence-type">Sequence Type</a></p></li>
 <li><p><a class="reference internal" href="#all-options">All options</a></p></li>
 </ul>