diff --git a/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/controllers/datalayer_controller.js b/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/controllers/datalayer_controller.js
index e8c6e163..87cd5357 100644
--- a/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/controllers/datalayer_controller.js
+++ b/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/controllers/datalayer_controller.js
@@ -2,7 +2,7 @@ import { Controller } from 'stimulus'
 
 export default class extends Controller {
 
-    static values = [ 'event' ]
+    static values = { event: String }
 
     trigger() {
         window.dataLayer = window.dataLayer || []