diff --git a/src/CsvResponse.php b/src/CsvResponse.php
index 021e1eb..1ec90a7 100644
--- a/src/CsvResponse.php
+++ b/src/CsvResponse.php
@@ -10,8 +10,11 @@
  *
  * @package OHWeb\Application\Responses
  */
-class CsvResponse extends Nette\Object implements Nette\Application\IResponse
+class CsvResponse implements Nette\Application\IResponse
 {
+	use Nette\SmartObject;
+
+
 	/** standard glues */
 	const COMMA = ',',
 		SEMICOLON = ';',