diff --git a/sylar/fiber.cc b/sylar/fiber.cc
index 93eb835..4da38a5 100644
--- a/sylar/fiber.cc
+++ b/sylar/fiber.cc
@@ -169,7 +169,7 @@ void Fiber::YieldToReady() {
     Fiber::ptr cur = GetThis();
     SYLAR_ASSERT(cur->m_state == EXEC);
     cur->m_state = READY;
-    cur->swapOut();
+    cur->back();
 }
 
 //协程切换到后台，并且设置为Hold状态
@@ -177,7 +177,7 @@ void Fiber::YieldToHold() {
     Fiber::ptr cur = GetThis();
     SYLAR_ASSERT(cur->m_state == EXEC);
     //cur->m_state = HOLD;
-    cur->swapOut();
+    cur->back();
 }
 
 //总协程数