diff --git a/lib/utils/templatize.html b/lib/utils/templatize.html
index d8a2ac296c..42b1b2b30e 100644
--- a/lib/utils/templatize.html
+++ b/lib/utils/templatize.html
@@ -230,9 +230,9 @@
        * Stub of HTMLElement's `dispatchEvent`, so that effects that may
        * dispatch events safely no-op.
        *
-       * @param event {Event} Event to dispatch
+       * @param {Event} event Event to dispatch
        */
-       dispatchEvent(event) {
+       dispatchEvent(event) { // eslint-disable-line no-unused-vars
       }
     }