diff --git a/Include/object.h b/Include/object.h
index 90a3354..5fc8ccb 100644
--- a/Include/object.h
+++ b/Include/object.h
@@ -428,6 +428,7 @@
 PyAPI_FUNC(PyObject *) PyType_GenericNew(PyTypeObject *,
 					       PyObject *, PyObject *);
 PyAPI_FUNC(PyObject *) _PyType_Lookup(PyTypeObject *, PyObject *);
+PyAPI_FUNC(unsigned int) PyType_ClearCache(void);
 
 /* Generic operations on objects */
 PyAPI_FUNC(int) PyObject_Print(PyObject *, FILE *, int);