diff --git a/bootstrapper-manual.html b/bootstrapper-manual.html
index 898b982..fae23c9 100644
--- a/bootstrapper-manual.html
+++ b/bootstrapper-manual.html
@@ -79,6 +79,7 @@
 	<p>The bootstrapper's configuration is in <code>OpenWF/Client Config.json</code> relative to your game folder. It has the following fields:</p>
 	<ul>
 		<li><code>fallback_language</code> — If not empty, this language will be used when Warframe.x64.exe is invoked without a <code>language</code> command line argument.</li>
+		<li><code>fallback_languageVO</code> — If not empty, this voiceover language will be used when Warframe.x64.exe is invoked without a <code>languageVO</code> command line argument.</li>
 		<li><code>fallback_graphicsDriver</code> — If not empty, this graphics driver will be used when Warframe.x64.exe is invoked without a <code>graphicsDriver</code> command line argument.</li>
 		<li><code>fallback_cluster</code> — The cluster to use when Warframe.x64.exe was double-clicked or the argument was simply omitted. Can be <code>public</code>, <code>test</code>, or <code>dev</code> — the latter two enable some more logging.</li>