diff --git a/src/wwwroot/index.js b/src/wwwroot/index.js
index 46b3611..1ca26a6 100644
--- a/src/wwwroot/index.js
+++ b/src/wwwroot/index.js
@@ -22,7 +22,9 @@ document.addEventListener("DOMContentLoaded", () => {
     !fileInputElement ||
     !chunksDisplayElement ||
     !fileIdElement ||
-    !fileStatusElement
+    !fileStatusElement ||
+    !fileDownloadElement ||
+    !downloadLinkElement
   ) {
     throw new Error("Required DOM elements missing.");
   }