diff --git a/source b/source
index 0639bb4821c..91a98c390ef 100644
--- a/source
+++ b/source
@@ -1805,7 +1805,7 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
    <span>node document</span>.</p></li>
   </ol>
 
-  <p>The <span data-x="concept-node-post-insert-ext">post-connection steps</span> for the HTML
+  <p>The <span data-x="concept-node-post-connection-ext">post-connection steps</span> for the HTML
   Standard, given <var>insertedNode</var>, are defined as the following:</p>
 
   <ol>
@@ -3261,7 +3261,7 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
      <li>The <dfn data-x-href="https://dom.spec.whatwg.org/#concept-node-pre-insert">pre-insert</dfn>, <dfn data-x="concept-node-insert" data-x-href="https://dom.spec.whatwg.org/#concept-node-insert">insert</dfn>, <dfn data-x="concept-node-append" data-x-href="https://dom.spec.whatwg.org/#concept-node-append">append</dfn>, <dfn data-x="concept-node-replace" data-x-href="https://dom.spec.whatwg.org/#concept-node-replace">replace</dfn>, <dfn data-x="concept-node-replace-all" data-x-href="https://dom.spec.whatwg.org/#concept-node-replace-all">replace all</dfn>, <dfn data-x-href="https://dom.spec.whatwg.org/#string-replace-all">string replace all</dfn>, <dfn data-x="concept-node-remove" data-x-href="https://dom.spec.whatwg.org/#concept-node-remove">remove</dfn>, and <dfn data-x="concept-node-adopt" data-x-href="https://dom.spec.whatwg.org/#concept-node-adopt">adopt</dfn> algorithms for nodes</li>
      <li>The <dfn data-x="concept-tree-descendant" data-x-href="https://dom.spec.whatwg.org/#concept-tree-descendant">descendant</dfn> concept</li>
      <li>The <dfn data-x="concept-node-insert-ext" data-x-href="https://dom.spec.whatwg.org/#concept-node-insert-ext">insertion steps</dfn>,
-     <li>The <dfn data-x="concept-node-post-insert-ext" data-x-href="https://dom.spec.whatwg.org/#concept-node-post-connection-ext">post-connection steps</dfn>,
+     <li>The <dfn data-x="concept-node-post-connection-ext" data-x-href="https://dom.spec.whatwg.org/#concept-node-post-connection-ext">post-connection steps</dfn>,
              <dfn data-x="concept-node-remove-ext" data-x-href="https://dom.spec.whatwg.org/#concept-node-remove-ext">removing steps</dfn>,
              <dfn data-x="concept-node-adopt-ext" data-x-href="https://dom.spec.whatwg.org/#concept-node-adopt-ext">adopting steps</dfn>, and
              <dfn data-x-href="https://dom.spec.whatwg.org/#concept-node-children-changed-ext">children changed steps</dfn> hooks for elements</li>