diff --git a/options.xhtml b/options.xhtml
index b09f844d0..db4639959 100644
--- a/options.xhtml
+++ b/options.xhtml
@@ -17837,7 +17837,7 @@ strings concatenated with “\n”</p>
 <p>Environment variables that will be set for the Bash session.</p>
 
 <p><span class="emphasis"><em>Type:</em></span>
-attribute set</p>
+lazy attribute set of (string or signed integer)</p>
 
 <p><span class="emphasis"><em>Default:</em></span>
 <code class="literal">{ }</code></p>