diff --git a/js/helperFunctions.js b/js/helperFunctions.js
index aa2deb6..b38ab18 100644
--- a/js/helperFunctions.js
+++ b/js/helperFunctions.js
@@ -1,4 +1,4 @@
-import isValidTag from "./isValidTag";
+import isValidTag from "./isValidTag.js";
 
 /**
  * @param {HTMLElement} element