diff --git a/src/Kdyby/Doctrine/DI/OrmExtension.php b/src/Kdyby/Doctrine/DI/OrmExtension.php
index daa84659..e1aa476d 100644
--- a/src/Kdyby/Doctrine/DI/OrmExtension.php
+++ b/src/Kdyby/Doctrine/DI/OrmExtension.php
@@ -458,7 +458,7 @@ protected function processSecondLevelCache($name, array $config, $isDefault)
 		}
 
 		$builder->addDefinition($this->prefix($name . '.cacheRegionsConfiguration'))
-			->setClass(Doctrine\ORM\Cache\RegionsConfiguration::class, [
+			->setFactory(Doctrine\ORM\Cache\RegionsConfiguration::class, [
 				$config['regions']['defaultLifetime'],
 				$config['regions']['defaultLockLifetime'],
 			])