diff --git a/src/js/polyfills/fetch/polyfill.js b/src/js/polyfills/fetch/polyfill.js
index 999257de..49595dd7 100644
--- a/src/js/polyfills/fetch/polyfill.js
+++ b/src/js/polyfills/fetch/polyfill.js
@@ -5,6 +5,6 @@ import { Headers } from './headers.js';
 
 
 globalThis.fetch = fetch;
+globalThis.Headers = Headers;
 globalThis.Request = Request;
 globalThis.Response = Response;
-globalThis.Headers = Headers;