diff --git a/public/typo3conf/ext/ep_products/Classes/Service/IcalService.php b/public/typo3conf/ext/ep_products/Classes/Service/IcalService.php
index d7230c49..be97b8a1 100644
--- a/public/typo3conf/ext/ep_products/Classes/Service/IcalService.php
+++ b/public/typo3conf/ext/ep_products/Classes/Service/IcalService.php
@@ -128,7 +128,9 @@ class IcalService implements SingletonInterface
 
         foreach ($events as $event) {
             /** @var Contingent $event */
-            if (null === $item && (Contingent::STATUS_BLOCKED === $event->getStatus() || Contingent::STATUS_ONREQUEST === $event->getStatus())) {
+            $isBlocked = Contingent::STATUS_BLOCKED === $event->getStatus() || Contingent::STATUS_ONREQUEST === $event->getStatus();
+            $isUnavailable = 0 === $event->getAvailable();
+            if (null === $item && ($isBlocked || $isUnavailable)) {
                 $item = [
                     'from' => $event->getBegin(),
                 ];
@@ -138,6 +140,11 @@ class IcalService implements SingletonInterface
                 $item = null;
             }
         }
+
+        if (isset($event) && null !== $item && !isset($item['to'])) {
+            $item['to'] = $event->getEnd();
+            $this->addBlockedItem($item);
+        }
     }
 
     /**
@@ -160,7 +167,7 @@ class IcalService implements SingletonInterface
     /**
      * @param array $item
      */
-    protected function addOccupancyItem( array $item): void
+    protected function addOccupancyItem(array $item): void
     {
         if (0 === $item['occupancy']) {
             return;