diff --git a/public/typo3conf/ext/ep_products/Classes/Service/GroupsSwissService.php b/public/typo3conf/ext/ep_products/Classes/Service/GroupsSwissService.php
index b818314c..fbeb414e 100644
--- a/public/typo3conf/ext/ep_products/Classes/Service/GroupsSwissService.php
+++ b/public/typo3conf/ext/ep_products/Classes/Service/GroupsSwissService.php
@@ -164,7 +164,7 @@ class GroupsSwissService implements SingletonInterface, LoggerAwareInterface
                     'from' => $event->getBegin(),
                 ];
             } elseif (true === is_array($item) && $status !== $contingentStatus) {
-                $item['to'] = $event->getEnd();
+                $item['to'] = $event->getEnd()->modify('-1 day');
                 $statusCode = Contingent::STATUS_ONREQUEST === $status ? 1 : 2;
                 $this->addItem($item, $statusCode, $apiKey, $houseNumber);
                 $item = null;