diff --git a/application/Espo/Core/FieldProcessing/Reminder/Saver.php b/application/Espo/Core/FieldProcessing/Reminder/Saver.php
index 511dd2dae8..dd93cf5323 100644
--- a/application/Espo/Core/FieldProcessing/Reminder/Saver.php
+++ b/application/Espo/Core/FieldProcessing/Reminder/Saver.php
@@ -112,7 +112,7 @@ class Saver implements SaverInterface
             $this->entityManager->getQueryExecutor()->execute($query);
         }
 
-        if (empty($reminderList) || !is_array($reminderList)) {
+        if (empty($reminderList)) {
             return;
         }
 
@@ -130,7 +130,6 @@ class Saver implements SaverInterface
             return;
         }
 
-
         if ($entity->hasLinkMultipleField('users')) {
             $userIdList = $entity->getLinkMultipleIdList('users');
         }
diff --git a/tests/integration/Espo/Core/FieldProcessing/ReminderTest.php b/tests/integration/Espo/Core/FieldProcessing/ReminderTest.php
new file mode 100644
index 0000000000..c29b68790d
--- /dev/null
+++ b/tests/integration/Espo/Core/FieldProcessing/ReminderTest.php
@@ -0,0 +1,69 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM - Open Source CRM application.
+ * Copyright (C) 2014-2021 Yurii Kuznietsov, Taras Machyshyn, Oleksii Avramenko
+ * Website: https://www.espocrm.com
+ *
+ * EspoCRM is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * EspoCRM is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with EspoCRM. If not, see http://www.gnu.org/licenses/.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace tests\integration\Espo\Core\FieldProcessing;
+
+use Espo\Core\{
+    ORM\EntityManager,
+};
+
+class ReminderTest extends \tests\integration\Core\BaseTestCase
+{
+    public function testOne(): void
+    {
+        /* @var $entityManager EntityManager */
+        $entityManager = $this->getContainer()->get('entityManager');
+
+        $meeting = $entityManager->createEntity('Meeting', [
+            'dateStart' => '2021-10-10 10:00:00',
+            'usersIds' => ['1'],
+            'reminders' => [
+                (object) [
+                    'type' => 'Popup',
+                    'seconds' => 0,
+                ],
+                 (object) [
+                    'type' => 'Popup',
+                    'seconds' => 60,
+                ]
+            ]
+        ]);
+
+        $reminderList = $entityManager
+            ->getRDBRepository('Reminder')
+            ->where([
+                'entityId' => $meeting->getId(),
+                'entityType' => $meeting->getEntityType(),
+            ])
+            ->order('remindAt')
+            ->find();
+
+        $this->assertEquals(2, count($reminderList));
+    }
+}