diff --git a/html-aam/index.html b/html-aam/index.html
index 8b7845b0d..d673ac1c4 100644
--- a/html-aam/index.html
+++ b/html-aam/index.html
@@ -13453,6 +13453,7 @@ <h4 id="att-popovertarget">`popovertarget`</h4>
                   <li>The element's `popovertargetaction` attribute is the "`auto`" state and the element is a descendant of the `popover` it is associated with.</li>
                   <!-- accessibility sibling will be defined in the ARIA specification -->
                 </ul>
+                <p class="note">A button that represents a <a data-cite="html/forms.html#concept-submit-button">submit button</a> with a [=button/form owner=] cannot invoke a popover.</p>
               </td>
             </tr>
           </tbody>