diff --git a/source b/source
index c619e3e3118..aa89d02a03b 100644
--- a/source
+++ b/source
@@ -79487,8 +79487,8 @@ partial interface <span id="NavigatorUserActivation-partial">Navigator</span> {
   <pre><code class="idl">[Exposed=Window]
 interface <dfn interface>ToggleEvent</dfn> : <span>Event</span> {
   constructor(DOMString type, optional <span>ToggleEventInit</span> eventInitDict = {});
-  readonly attribute DOMString oldState;
-  readonly attribute DOMString newState;
+  readonly attribute DOMString <span data-x="dom-ToggleEvent-oldState">oldState</span>;
+  readonly attribute DOMString <span data-x="dom-ToggleEvent-newState">newState</span>;
 };
 
 dictionary <dfn dictionary>ToggleEventInit</dfn> : <span>EventInit</span> {