diff --git a/public/typo3conf/ext/ep_products/Classes/Utility/BookingUrlUtility.php b/public/typo3conf/ext/ep_products/Classes/Utility/BookingUrlUtility.php
index ad56b665..263062e1 100644
--- a/public/typo3conf/ext/ep_products/Classes/Utility/BookingUrlUtility.php
+++ b/public/typo3conf/ext/ep_products/Classes/Utility/BookingUrlUtility.php
@@ -151,9 +151,8 @@ class BookingUrlUtility
      */
     protected static function buildUrl(array $query): string
     {
-        $pageId = $GLOBALS['TSFE']->id;
         $baseUrl = GeneralUtility::makeInstance(SiteFinder::class)
-            ->getSiteByPageId($pageId)
+            ->getSiteByIdentifier('ep-reisen')
             ->getBase();
 
         return $baseUrl . '/buchung/maske_buchung.php?' . http_build_query($query, '', '&');