diff --git a/doc/XXL-JOB官方文档.md b/doc/XXL-JOB官方文档.md
index 75aa019e..9667cc97 100644
--- a/doc/XXL-JOB官方文档.md
+++ b/doc/XXL-JOB官方文档.md
@@ -1201,6 +1201,7 @@ Tips: 历史版本(V1.3.x)目前已经Release至稳定版本, 进入维护阶段
 - 10、底层LocalCache组件兼容性优化，支持jdk、jdk10编译部署；
 - 11、任务回调结果优化，支持展示在Rolling log中，方便问题排查；
 - 12、脚本任务异常Log输出优化；
+- 13、任务线程停止变量修饰符优化；
 
 
 ### TODO LIST
diff --git a/xxl-job-core/src/main/java/com/xxl/job/core/thread/JobThread.java b/xxl-job-core/src/main/java/com/xxl/job/core/thread/JobThread.java
index 93b36615..bc86a2c2 100644
--- a/xxl-job-core/src/main/java/com/xxl/job/core/thread/JobThread.java
+++ b/xxl-job-core/src/main/java/com/xxl/job/core/thread/JobThread.java
@@ -30,7 +30,7 @@ public class JobThread extends Thread{
 	private LinkedBlockingQueue<TriggerParam> triggerQueue;
 	private ConcurrentHashSet<Integer> triggerLogIdSet;		// avoid repeat trigger for the same TRIGGER_LOG_ID
 
-	private boolean toStop = false;
+	private volatile boolean toStop = false;
 	private String stopReason;
 
     private boolean running = false;    // if running job