diff --git a/Python/ceval.c b/Python/ceval.c
index 5fa555e..786adbf 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -4410,10 +4410,8 @@
 {
     PyThreadState *tstate = PyThreadState_GET();
 
-    Py_CLEAR(tstate->coroutine_wrapper);
-
     Py_XINCREF(wrapper);
-    tstate->coroutine_wrapper = wrapper;
+    Py_SETREF(tstate->coroutine_wrapper, wrapper);
 }
 
 PyObject *