diff --git a/src/DI/OrmCacheExtension.php b/src/DI/OrmCacheExtension.php
index 3ff0614..d8704ad 100644
--- a/src/DI/OrmCacheExtension.php
+++ b/src/DI/OrmCacheExtension.php
@@ -38,7 +38,7 @@ public function getConfigSchema(): Schema
 			'hydrationCache' => $this->getServiceSchema(),
 			'metadataCache' => $this->getServiceSchema(),
 			'resultCache' => $this->getServiceSchema(),
-			'secondLevelCache' => Expect::array()->default(null),
+			'secondLevelCache' => $this->getServiceSchema(),
 		]);
 	}
 
diff --git a/tests/cases/Unit/DI/OrmCacheExtensionTest.php b/tests/cases/Unit/DI/OrmCacheExtensionTest.php
index aa855ea..57f3733 100644
--- a/tests/cases/Unit/DI/OrmCacheExtensionTest.php
+++ b/tests/cases/Unit/DI/OrmCacheExtensionTest.php
@@ -6,6 +6,7 @@
 use Doctrine\Common\Cache\ArrayCache;
 use Doctrine\Common\Cache\PhpFileCache;
 use Doctrine\Common\Cache\VoidCache;
+use Doctrine\ORM\Cache\CacheConfiguration;
 use Nette\DI\Compiler;
 use Nette\DI\Container;
 use Nette\DI\ContainerLoader;
@@ -17,6 +18,7 @@
 use Nettrine\ORM\DI\OrmCacheExtension;
 use Nettrine\ORM\DI\OrmExtension;
 use Nettrine\ORM\EntityManagerDecorator;
+use Tests\Fixtures\DummyCacheConfigurationFactory;
 use Tests\Toolkit\TestCase;
 
 final class OrmCacheExtensionTest extends TestCase
@@ -68,6 +70,7 @@ public function testProvidedCacheDrivers(): void
 					'hydrationCache' => VoidCache::class,
 					'metadataCache' => null,
 					'queryCache' => ApcuCache::class,
+					'secondLevelCache' => [DummyCacheConfigurationFactory::class, 'create'],
 					//'resultCache' => null,
 				],
 				'parameters' => [
@@ -87,6 +90,7 @@ public function testProvidedCacheDrivers(): void
 		$this->assertInstanceOf(ArrayCache::class, $em->getConfiguration()->getMetadataCacheImpl());
 		$this->assertInstanceOf(ApcuCache::class, $em->getConfiguration()->getQueryCacheImpl());
 		$this->assertInstanceOf(ArrayCache::class, $em->getConfiguration()->getResultCacheImpl());
+		$this->assertInstanceOf(CacheConfiguration::class, $em->getConfiguration()->getSecondLevelCacheConfiguration());
 	}
 
 	public function testNoCacheDriver(): void
diff --git a/tests/fixtures/DummyCacheConfigurationFactory.php b/tests/fixtures/DummyCacheConfigurationFactory.php
new file mode 100644
index 0000000..34d871b
--- /dev/null
+++ b/tests/fixtures/DummyCacheConfigurationFactory.php
@@ -0,0 +1,25 @@
+<?php declare(strict_types = 1);
+
+namespace Tests\Fixtures;
+
+use Doctrine\Common\Cache\ArrayCache;
+use Doctrine\ORM\Cache\CacheConfiguration;
+use Doctrine\ORM\Cache\DefaultCacheFactory;
+use Doctrine\ORM\Cache\RegionsConfiguration;
+
+final class DummyCacheConfigurationFactory
+{
+
+	public static function create(): CacheConfiguration
+	{
+		$regionsConfiguration = new RegionsConfiguration();
+		$cache = new ArrayCache();
+		$cacheFactory = new DefaultCacheFactory($regionsConfiguration, $cache);
+
+		$cacheConfiguration = new CacheConfiguration();
+		$cacheConfiguration->setCacheFactory($cacheFactory);
+
+		return $cacheConfiguration;
+	}
+
+}