diff --git a/Include/dictobject.h b/Include/dictobject.h
index 554b82e5a30..7fa400a5b27 100644
--- a/Include/dictobject.h
+++ b/Include/dictobject.h
@@ -87,6 +87,7 @@ struct _dictobject {
 PyAPI_DATA(PyTypeObject) PyDict_Type;
 
 #define PyDict_Check(op) PyObject_TypeCheck(op, &PyDict_Type)
+#define PyList_CheckExact(op) ((op)->ob_type == &PyDict_Type)
 
 PyAPI_FUNC(PyObject *) PyDict_New(void);
 PyAPI_FUNC(PyObject *) PyDict_GetItem(PyObject *mp, PyObject *key);