diff --git a/kiri-engine/Redis/Helper.php b/kiri-engine/Redis/Helper.php
index 0c31ac41..0d90f7c9 100644
--- a/kiri-engine/Redis/Helper.php
+++ b/kiri-engine/Redis/Helper.php
@@ -99,7 +99,7 @@ class Helper implements StopHeartbeatCheck
 
 
 	/**
-	 *
+	 * clear client heartbeat
 	 */
 	public function stopHeartbeatCheck(): void
 	{