diff --git a/src/bthread/task_group.cpp b/src/bthread/task_group.cpp
index 469e1b0b8d..cbae7c5bfa 100644
--- a/src/bthread/task_group.cpp
+++ b/src/bthread/task_group.cpp
@@ -258,7 +258,7 @@ void TaskGroup::task_runner(intptr_t skip_remained) {
             RemainedFn fn = g->_last_context_remained;
             g->_last_context_remained = NULL;
             fn(g->_last_context_remained_arg);
-            g = tls_task_group;
+            g = BAIDU_GET_VOLATILE_THREAD_LOCAL(tls_task_group);
         }
 
 #ifndef NDEBUG