diff --git a/nixos/doc/manual/release-notes/rl-1909.xml b/nixos/doc/manual/release-notes/rl-1909.xml
index bde48bc16afd..0e067cf1f55b 100644
--- a/nixos/doc/manual/release-notes/rl-1909.xml
+++ b/nixos/doc/manual/release-notes/rl-1909.xml
@@ -163,7 +163,8 @@
      Most of the httpd subservices packaged with NixOS have been replaced with
      full NixOS modules including LimeSurvey, WordPress, and Zabbix. These
      modules can be enabled using the <option>services.limesurvey.enable</option>,
-     <option>services.wordpress.enable</option>, and <option>services.zabbixWeb.enable</option> options.
+     <option>services.mediawiki.enable</option>, <option>services.wordpress.enable</option>,
+     and <option>services.zabbixWeb.enable</option> options.
     </para>
    </listitem>
    <listitem>