diff --git a/swh/web/ui/templates/includes/apidoc-header.html b/swh/web/ui/templates/includes/apidoc-header.html
--- a/swh/web/ui/templates/includes/apidoc-header.html
+++ b/swh/web/ui/templates/includes/apidoc-header.html
@@ -25,7 +25,7 @@
 <pre class="shell"><code>curl -i -H &#39;Accept: application/yaml&#39; https://archive.softwareheritage.org/api/1/stat/counters/</code></pre></li>
 </ul>
 <h3 id="parameters">Parameters</h3>
-<p>Some API endpoints can be used with with local parameters. The url then needs to be adapted accordingly.</p>
+<p>Some API endpoints can be used with local parameters. The url then needs to be adapted accordingly.</p>
 <p>For example:</p>
 <pre class="text"><code>https://archive.softwareheritage.org/api/1/&lt;endpoint-name&gt;?&lt;field0&gt;=&lt;value0&gt;&amp;&lt;field1&gt;=&lt;value1&gt;</code></pre>
 <p>where:</p>
diff --git a/swh/web/ui/templates/includes/apidoc-header.md b/swh/web/ui/templates/includes/apidoc-header.md
--- a/swh/web/ui/templates/includes/apidoc-header.md
+++ b/swh/web/ui/templates/includes/apidoc-header.md
@@ -62,7 +62,7 @@
 
 ### Parameters
 
-Some API endpoints can be used with with local parameters. The url
+Some API endpoints can be used with local parameters. The url
 then needs to be adapted accordingly.
 
 For example: