diff --git a/src/Bridges/HttpDI/SessionExtension.php b/src/Bridges/HttpDI/SessionExtension.php
index 9a2ac7ef..870ae82c 100644
--- a/src/Bridges/HttpDI/SessionExtension.php
+++ b/src/Bridges/HttpDI/SessionExtension.php
@@ -42,7 +42,7 @@ public function loadConfiguration()
 		$this->setConfig($config);
 
 		$session = $builder->addDefinition($this->prefix('session'))
-			->setClass(Nette\Http\Session::class);
+			->setFactory(Nette\Http\Session::class);
 
 		if ($config['expiration']) {
 			$session->addSetup('setExpiration', [$config['expiration']]);