diff --git a/options.xhtml b/options.xhtml
index 849b23ba0..bf2cec9e6 100644
--- a/options.xhtml
+++ b/options.xhtml
@@ -23465,7 +23465,9 @@ strings concatenated with “\n”</p>
  </span>
 </dt>
 <dd>
-<p>Configuration written to <code class="filename">~/.codex/config.toml</code> (0.2.0+) or <code class="filename">~/.codex/config.yaml</code> (&lt;0.2.0).
+<p>Configuration written to <code class="filename">CODEX_HOME/config.toml</code> (0.2.0+)
+or <code class="filename">~/.codex/config.yaml</code> (&lt;0.2.0). Per default <code class="envar">CODEX_HOME</code>
+defaults to ~/.codex.
 See <a class="link" href="https://github.com/openai/codex/blob/main/codex-rs/config.md"  target="_top">https://github.com/openai/codex/blob/main/codex-rs/config.md</a> for supported values.</p>
 
 <p><span class="emphasis"><em>Type:</em></span>