diff --git a/Objects/rangeobject.c b/Objects/rangeobject.c
index 530426c..3e05707 100644
--- a/Objects/rangeobject.c
+++ b/Objects/rangeobject.c
@@ -735,7 +735,7 @@ PyTypeObject PyRange_Type = {
         PyObject_GenericGetAttr,  /* tp_getattro */
         0,                      /* tp_setattro */
         0,                      /* tp_as_buffer */
-        Py_TPFLAGS_DEFAULT,     /* tp_flags */
+        Py_TPFLAGS_DEFAULT | Py_TPFLAGS_SEQUENCE,  /* tp_flags */
         range_doc,              /* tp_doc */
         0,                      /* tp_traverse */
         0,                      /* tp_clear */