diff --git a/understanding/understanding.11tydata.js b/understanding/understanding.11tydata.js
index fb9e83a3f1..8704be12ad 100644
--- a/understanding/understanding.11tydata.js
+++ b/understanding/understanding.11tydata.js
@@ -342,7 +342,7 @@ export default function (data) {
         advisory: [
           "Enabling user agents to find the version of the content that best fits their needs",
           'Using semantics to identify important features (e.g., <code>coga-simplification="simplest"</code>)',
-          "Using <code>aria-invalid</code> and <code>aria-required</code>",
+          "Using <code>required</code> or <code>aria-invalid</code> and <code>aria-required</code> to programmatically identify required fields and/or those with validation errors",
         ],
       },