diff --git a/Objects/floatobject.c b/Objects/floatobject.c
index 74f1315..cb0d999 100644
--- a/Objects/floatobject.c
+++ b/Objects/floatobject.c
@@ -1162,8 +1162,7 @@
 	PyObject_GenericGetAttr,		/* tp_getattro */
 	0,					/* tp_setattro */
 	0,					/* tp_as_buffer */
-	Py_TPFLAGS_DEFAULT | Py_TPFLAGS_CHECKTYPES |
-		Py_TPFLAGS_BASETYPE,		/* tp_flags */
+	Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
 	float_doc,				/* tp_doc */
  	0,					/* tp_traverse */
 	0,					/* tp_clear */