diff --git a/Include/descrobject.h b/Include/descrobject.h
index a45a801..badfa5b 100644
--- a/Include/descrobject.h
+++ b/Include/descrobject.h
@@ -67,7 +67,12 @@
 	void *d_wrapped; /* This can be any function pointer */
 } PyWrapperDescrObject;
 
+PyAPI_DATA(PyTypeObject) PyClassMethodDescr_Type;
+PyAPI_DATA(PyTypeObject) PyGetSetDescr_Type;
+PyAPI_DATA(PyTypeObject) PyMemberDescr_Type;
+PyAPI_DATA(PyTypeObject) PyMethodDescr_Type;
 PyAPI_DATA(PyTypeObject) PyWrapperDescr_Type;
+PyAPI_DATA(PyTypeObject) PyDictProxy_Type;
 
 PyAPI_FUNC(PyObject *) PyDescr_NewMethod(PyTypeObject *, PyMethodDef *);
 PyAPI_FUNC(PyObject *) PyDescr_NewClassMethod(PyTypeObject *, PyMethodDef *);