diff --git a/austin-support/src/main/java/com/java3y/austin/support/pending/AbstractLazyPending.java b/austin-support/src/main/java/com/java3y/austin/support/pending/AbstractLazyPending.java
index 6e5f313..e3d6075 100644
--- a/austin-support/src/main/java/com/java3y/austin/support/pending/AbstractLazyPending.java
+++ b/austin-support/src/main/java/com/java3y/austin/support/pending/AbstractLazyPending.java
@@ -40,7 +40,7 @@ public abstract class AbstractLazyPending<T> {
     /**
      * 是否终止线程
      */
-    private Boolean stop = false;
+    private volatile Boolean stop = false;
 
     /**
      * 单线程消费 阻塞队列的数据