diff --git a/lib/Model/ProxyCacheMessageMapper.php b/lib/Model/ProxyCacheMessageMapper.php
index f4fba2b240d..f7006a13ef1 100644
--- a/lib/Model/ProxyCacheMessageMapper.php
+++ b/lib/Model/ProxyCacheMessageMapper.php
@@ -75,8 +75,8 @@ public function findByRemote(string $remoteServerUrl, string $remoteToken, int $
 	public function deleteExpiredMessages(\DateTimeInterface $dateTime): int {
 		$query = $this->db->getQueryBuilder();
 		$query->delete($this->getTableName())
-			->where($query->expr()->isNotNull('expire_datetime'))
-			->andWhere($query->expr()->lte('expire_datetime', $query->createNamedParameter($dateTime, IQueryBuilder::PARAM_DATE)));
+			->where($query->expr()->isNotNull('expiration_datetime'))
+			->andWhere($query->expr()->lte('expiration_datetime', $query->createNamedParameter($dateTime, IQueryBuilder::PARAM_DATE)));
 
 		return $query->executeStatement();
 	}
diff --git a/tests/php/Service/ProxyCacheMessageServiceTest.php b/tests/php/Service/ProxyCacheMessageServiceTest.php
new file mode 100644
index 00000000000..f6612c9c2fd
--- /dev/null
+++ b/tests/php/Service/ProxyCacheMessageServiceTest.php
@@ -0,0 +1,117 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright Copyright (c) 2024 Joas Schilling <coding@schilljs.com>
+ *
+ * @author Joas Schilling <coding@schilljs.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\Talk\Tests\php\Service;
+
+use OCA\Talk\Model\ProxyCacheMessage;
+use OCA\Talk\Model\ProxyCacheMessageMapper;
+use OCA\Talk\Service\ProxyCacheMessageService;
+use OCP\AppFramework\Db\DoesNotExistException;
+use OCP\AppFramework\Utility\ITimeFactory;
+use OCP\IDBConnection;
+use PHPUnit\Framework\MockObject\MockObject;
+use Psr\Log\LoggerInterface;
+use Test\TestCase;
+
+/**
+ * @group DB
+ */
+class ProxyCacheMessageServiceTest extends TestCase {
+	protected ?ProxyCacheMessageMapper $mapper = null;
+	protected LoggerInterface|MockObject $logger;
+	protected ITimeFactory|MockObject $timeFactory;
+	protected ?ProxyCacheMessageService $service = null;
+
+
+	public function setUp(): void {
+		parent::setUp();
+
+		$this->mapper = new ProxyCacheMessageMapper(\OCP\Server::get(IDBConnection::class));
+		$this->logger = $this->createMock(LoggerInterface::class);
+		$this->timeFactory = $this->createMock(ITimeFactory::class);
+
+		$this->service = new ProxyCacheMessageService(
+			$this->mapper,
+			$this->logger,
+			$this->timeFactory,
+		);
+		$this->clearMessages();
+	}
+
+	public function tearDown(): void {
+		$this->clearMessages();
+
+		parent::tearDown();
+	}
+
+	protected function clearMessages(): void {
+		$query = \OCP\Server::get(IDBConnection::class)->getQueryBuilder();
+		$query->delete('talk_proxy_messages')
+			->where($query->expr()->eq('remote_server_url', $query->createNamedParameter('phpunittests')));
+		$query->executeStatement();
+	}
+
+	public function dataDeleteExpiredMessages(): array {
+		return [
+			[1234,    12345, true],
+			[1234567, 12345, false],
+			[null,    12345, false],
+		];
+	}
+
+	/**
+	 * @dataProvider dataDeleteExpiredMessages
+	 */
+	public function testDeleteExpiredMessages(?int $messageTime, int $currentTime, bool $expired): void {
+		$m1 = new ProxyCacheMessage();
+		$m1->setLocalToken('local_token');
+		$m1->setRemoteServerUrl('phpunittests');
+		$m1->setRemoteToken('remote_token');
+		$m1->setRemoteMessageId(12345);
+		$m1->setActorType('actor_type');
+		$m1->setActorId('actor_id');
+		$m1->setMessageType('message_type');
+		if ($messageTime === null) {
+			$m1->setExpirationDatetime($messageTime);
+		} else {
+			$m1->setExpirationDatetime(new \DateTime('@' . $messageTime));
+		}
+		$this->mapper->insert($m1);
+
+		$this->mapper->findById($m1->getId());
+
+		$this->timeFactory->method('getDateTime')
+			->willReturn(new \DateTime('@' . $currentTime));
+		$this->service->deleteExpiredMessages();
+
+		if ($expired) {
+			$this->expectException(DoesNotExistException::class);
+		}
+		$actual = $this->mapper->findById($m1->getId());
+		if (!$expired) {
+			$this->assertEquals($m1->getId(), $actual->getId());
+		}
+	}
+}