diff --git a/kiri-engine/Redis/Redis.php b/kiri-engine/Redis/Redis.php
index 93600019..4580e8fc 100644
--- a/kiri-engine/Redis/Redis.php
+++ b/kiri-engine/Redis/Redis.php
@@ -197,10 +197,10 @@ SCRIPT;
 
 
 	/**
-	 * @return Helper
+	 * @return \Redis
 	 * @throws ConfigException
 	 */
-	private function getClient(): Helper
+	private function getClient(): \Redis
 	{
 		$config = $this->get_config();
 		return $this->pool->get($config['host']);