diff --git a/source b/source
index cb9984cef5c..fe15e91ca2a 100644
--- a/source
+++ b/source
@@ -137927,8 +137927,7 @@ interface <dfn interface>HTMLParamElement</dfn> : <span>HTMLElement</span> {
   <pre><code class="idl">partial interface <span id="HTMLScriptElement-partial">HTMLScriptElement</span> {
   [<span>CEReactions</span>] attribute DOMString <span data-x="dom-script-charset">charset</span>;
   [<span>CEReactions</span>] attribute DOMString <span data-x="dom-script-event">event</span>;
-  [<span>CEReactions</span>] attribute DOMString <span data-x="dom-script-for">for</span>;
-  [<span>CEReactions</span>] attribute DOMString <span data-x="dom-script-htmlFor">htmlFor</span>; // legacy alias of .for
+  [<span>CEReactions</span>] attribute DOMString <span data-x="dom-script-htmlFor">htmlFor</span>;
 };</code></pre>
 
   <p>The <dfn attribute for="HTMLScriptElement"><code
@@ -137937,8 +137936,7 @@ interface <dfn interface>HTMLParamElement</dfn> : <span>HTMLElement</span> {
   must <span>reflect</span> the respective content attributes of the same name.</p>
 
   <p>The <dfn attribute for="HTMLScriptElement"><code
-  data-x="dom-script-for">for</code></dfn> and <dfn attribute for="HTMLScriptElement"><code
-  data-x="dom-script-htmlFor">htmlFor</code></dfn> IDL attributes of the <code>script</code> element
+  data-x="dom-script-htmlFor">htmlFor</code></dfn> IDL attribute of the <code>script</code> element
   must <span>reflect</span> the element's <code data-x="attr-script-for">for</code> content
   attribute.</p>