diff --git a/Parser/asdl_c.py b/Parser/asdl_c.py
index 08353a9..ac61c78 100755
--- a/Parser/asdl_c.py
+++ b/Parser/asdl_c.py
@@ -830,7 +830,7 @@
 static int obj2ast_int(PyObject* obj, int* out, PyArena* arena)
 {
     int i;
-    if (!PyInt_Check(obj) && !PyLong_Check(obj)) {
+    if (!_PyAnyInt_Check(obj)) {
         PyObject *s = PyObject_Repr(obj);
         if (s == NULL) return 1;
         PyErr_Format(PyExc_ValueError, "invalid integer value: %.400s",