diff --git a/hippo4j-adapter/hippo4j-adapter-hystrix/src/main/java/cn/hippo4j/adapter/hystrix/HystrixThreadPoolAdapter.java b/hippo4j-adapter/hippo4j-adapter-hystrix/src/main/java/cn/hippo4j/adapter/hystrix/HystrixThreadPoolAdapter.java
index 2aae3a00..ee8b98ae 100644
--- a/hippo4j-adapter/hippo4j-adapter-hystrix/src/main/java/cn/hippo4j/adapter/hystrix/HystrixThreadPoolAdapter.java
+++ b/hippo4j-adapter/hippo4j-adapter-hystrix/src/main/java/cn/hippo4j/adapter/hystrix/HystrixThreadPoolAdapter.java
@@ -174,6 +174,9 @@ public class HystrixThreadPoolAdapter implements ThreadPoolAdapter, ApplicationL
         return registerFlag;
     }
 
+    /**
+     * Hystrix Thread Pool Refresh Task
+     */
     class HystrixThreadPoolRefreshTask implements Runnable {
 
         private ScheduledExecutorService scheduler;