diff --git a/README.md b/README.md
index 58f1373..558ebb5 100644
--- a/README.md
+++ b/README.md
@@ -134,7 +134,7 @@ co_launch(^{
 We use co_sequence to create the generator
 
 ```objc
-COCoroutine *co1 = co_sequence(^{
+COGenerator *co1 = co_sequence(^{
             int index = 0;
             while(co_isActive()){
                 yield_val(@(index));
diff --git a/README_cn.md b/README_cn.md
index ea477ad..88d16b8 100644
--- a/README_cn.md
+++ b/README_cn.md
@@ -117,7 +117,7 @@ co_launch(^{
 我们使用 `co_sequence` 创建生成器
 
 ```objc
-COCoroutine *co1 = co_sequence(^{
+COGenerator *co1 = co_sequence(^{
             int index = 0;
             while(co_isActive()){
                 yield_val(@(index));