diff --git a/options.xhtml b/options.xhtml
index 7da30cc5..d98d729e 100644
--- a/options.xhtml
+++ b/options.xhtml
@@ -80101,7 +80101,7 @@ null or boolean</p>
 <p>Whether the program runs in a terminal window.</p>
 
 <p><span class="emphasis"><em>Type:</em></span>
-boolean</p>
+null or boolean</p>
 
 <p><span class="emphasis"><em>Default:</em></span>
 <code class="literal">false</code></p>