diff --git a/src/js/experimental/media-captions-listbox.js b/src/js/experimental/media-captions-listbox.js
index 996633f9f..852411e60 100644
--- a/src/js/experimental/media-captions-listbox.js
+++ b/src/js/experimental/media-captions-listbox.js
@@ -14,37 +14,6 @@ slotTemplate.innerHTML = /*html*/`
${ccIcon}
`;
-/**
- * @param {any} el Should be HTMLElement but issues with globalThis shim
- * @param {string} attrName
- * @returns {Array