1 files changed, 3 insertions, 2 deletions
diff --git a/Python/generated_cases.c.h b/Python/generated_cases.c.h
index c6b8fbc50f3..d346875ea44 100644
--- a/Python/generated_cases.c.h
+++ b/Python/generated_cases.c.h
@@ -4304,11 +4304,12 @@
                 else {
                     /* `iterable` is not a generator. */
                     _PyFrame_SetStackPointer(frame, stack_pointer);
-                    iter = PyStackRef_FromPyObjectSteal(PyObject_GetIter(iterable_o));
+                    PyObject *iter_o = PyObject_GetIter(iterable_o);
                     stack_pointer = _PyFrame_GetStackPointer(frame);
-                    if (PyStackRef_IsNull(iter)) {
+                    if (iter_o == NULL) {
                         goto error;
                     }
+                    iter = PyStackRef_FromPyObjectSteal(iter_o);
                     PyStackRef_CLOSE(iterable);
                 }
             }