diff --git a/source b/source
index 9e273a64589..68173029e59 100644
--- a/source
+++ b/source
@@ -23966,7 +23966,8 @@ interface <dfn>HTMLHyperlinkElementUtils</dfn> {
   the <code data-x="rel-search">search</code> link type to enable user agents to autodiscover search
   interfaces. <ref spec=OPENSEARCH></p>
 
-  <h5>Link type "<dfn><code data-x="rel-serviceworker">serviceworker</code></dfn>"</h5>
+  <h5>Link type "<dfn data-dfn-for="link/rel" data-dfn-type="attr-value" data-export=""><code
+  data-x="rel-serviceworker">serviceworker</code></dfn>"</h5>
 
   <p>The <code data-x="rel-serviceworker">serviceworker</code> keyword may be used with
   <code>link</code> elements. This keyword creates an <span data-x="external resource link">external