1 files changed, 1 insertions, 0 deletions
diff --git a/Python/pystate.c b/Python/pystate.c
index 4ac05d66256..7e0267ae1d0 100644
--- a/Python/pystate.c
+++ b/Python/pystate.c
@@ -213,6 +213,7 @@ new_threadstate(PyInterpreterState *interp, int init)
         tstate->on_delete_data = NULL;
 
         tstate->coroutine_wrapper = NULL;
+        tstate->in_coroutine_wrapper = 0;
 
         if (init)
             _PyThreadState_Init(tstate);