diff --git a/Objects/typeobject.c b/Objects/typeobject.c
index fea6e15a6728..1c1b19741643 100644
--- a/Objects/typeobject.c
+++ b/Objects/typeobject.c
@@ -2619,6 +2619,7 @@ reduce_2(PyObject *obj)
 	Py_XDECREF(cls);
 	Py_XDECREF(args);
 	Py_XDECREF(args2);
+	Py_XDECREF(slots);
 	Py_XDECREF(state);
 	Py_XDECREF(names);
 	Py_XDECREF(listitems);