diff --git a/web/index.php b/web/index.php
index 3351353..cb27e70 100644
--- a/web/index.php
+++ b/web/index.php
@@ -5,5 +5,5 @@ print('This is a slow test. ' . date('Y-m-d H:i:s'));
 ?>
 <p id="js-date"></p>
 <script type="text/javascript">
-  document.getElementById('js-date').innerText(new Date().toISOString());
+  document.getElementById('js-date').innerText = new Date().toISOString();
 </script>
\ No newline at end of file