diff --git a/src/EventListener/JsErrorToAlertListener.php b/src/EventListener/JsErrorToAlertListener.php
index 31d19f9..9cb1367 100644
--- a/src/EventListener/JsErrorToAlertListener.php
+++ b/src/EventListener/JsErrorToAlertListener.php
@@ -52,7 +52,7 @@ protected function injectScript(Response $response, Request $request): void
 
 		if ($pos !== false) {
 			$toolbar = "\n\n" . '
-	<script type="text/javascript">
+	<script type="text/javascript" id="mhujer-javascript-error-handler-bundle">
 		window.onerror = function (errorMessage, url, line, col, error) {
 			alert(
 				errorMessage + "\n\n" +
diff --git a/tests/EventListener/JsErrorToAlertListenerTest.php b/tests/EventListener/JsErrorToAlertListenerTest.php
index a3b0ae3..365edf8 100644
--- a/tests/EventListener/JsErrorToAlertListenerTest.php
+++ b/tests/EventListener/JsErrorToAlertListenerTest.php
@@ -71,7 +71,7 @@ public function testScriptIsInjected(string $responseBody, string $expectedRespo
 	private const BASIC_HTML_WITH_JS = '<html><head>
 
 
-	<script type="text/javascript">
+	<script type="text/javascript" id="mhujer-javascript-error-handler-bundle">
 		window.onerror = function (errorMessage, url, line, col, error) {
 			alert(
 				errorMessage + "\n\n" +
