diff --git a/Include/cpython/object.h b/Include/cpython/object.h
index 43b0be3..19c066b 100644
--- a/Include/cpython/object.h
+++ b/Include/cpython/object.h
@@ -516,6 +516,8 @@ struct _ts;
 /* Python 3.9 private API, invoked by the macros below. */
 PyAPI_FUNC(int) _PyTrash_begin(struct _ts *tstate, PyObject *op);
 PyAPI_FUNC(void) _PyTrash_end(struct _ts *tstate);
+/* Python 3.10 private API, invoked by the Py_TRASHCAN_BEGIN(). */
+PyAPI_FUNC(int) _PyTrash_cond(PyObject *op, destructor dealloc);
 
 #define PyTrash_UNWIND_LEVEL 50
 
@@ -539,7 +541,7 @@ PyAPI_FUNC(void) _PyTrash_end(struct _ts *tstate);
 
 #define Py_TRASHCAN_BEGIN(op, dealloc) \
     Py_TRASHCAN_BEGIN_CONDITION(op, \
-        Py_TYPE(op)->tp_dealloc == (destructor)(dealloc))
+        _PyTrash_cond(_PyObject_CAST(op), (destructor)dealloc))
 
 /* For backwards compatibility, these macros enable the trashcan
  * unconditionally */