diff --git a/index.bs b/index.bs
index 09ce04c9..3c58ddf0 100644
--- a/index.bs
+++ b/index.bs
@@ -3616,15 +3616,15 @@ spec: storage; urlPrefix: https://storage.spec.whatwg.org/
       1. Return false.
   </section>
 
-  <section algorithm>
+  <section algorithm="Fire Functional Event">
     <h3 id="fire-functional-event-algorithm"><dfn export lt="Fire Functional Event|Fire a functional event">Fire Functional Event</dfn></h3>
 
       : Input
-      :: |eventName|, a string
-      :: |eventConstructor|, an event constructor that extends {{ExtendableEvent}}
-      :: |registration|, a [=/service worker registration=]
-      :: |initialization|, optional property initialization for |event|, constructed from |eventConstructor|
-      :: |postDispatchSteps|, optional steps to run on the [=service worker registration/active worker=]'s event loop, with |dispatchedEvent| set to the instance of |eventConstructor| that was [=dispatched=].
+      :: <dfn export for="Fire Functional Event">|eventName|</dfn>, a string
+      :: <dfn export for="Fire Functional Event">|eventConstructor|</dfn>, an event constructor that extends {{ExtendableEvent}}
+      :: <dfn export for="Fire Functional Event">|registration|</dfn>, a [=/service worker registration=]
+      :: <dfn export for="Fire Functional Event">|initialization|</dfn>, optional property initialization for |event|, constructed from |eventConstructor|
+      :: <dfn export for="Fire Functional Event">|postDispatchSteps|</dfn>, optional steps to run on the [=service worker registration/active worker=]'s event loop, with |dispatchedEvent| set to the instance of |eventConstructor| that was [=dispatched=].
       : Output
       :: None