diff --git a/options.xhtml b/options.xhtml
index a9a1151ac..448ae2069 100644
--- a/options.xhtml
+++ b/options.xhtml
@@ -26811,7 +26811,7 @@ package</p>
 <code class="filename">$XDG_CONFIG_HOME/htop/htoprc</code>.</p>
 
 <p><span class="emphasis"><em>Type:</em></span>
-attribute set</p>
+attribute set of (boolean or signed integer or string or list of (signed integer or string))</p>
 
 <p><span class="emphasis"><em>Default:</em></span>
 <code class="literal">{ }</code></p>