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-rw-r--r--Objects/typeobject.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/Objects/typeobject.c b/Objects/typeobject.c
index 984b582..303dead 100644
--- a/Objects/typeobject.c
+++ b/Objects/typeobject.c
@@ -864,7 +864,7 @@ type_new(PyTypeObject *metatype, PyObject *args, PyObject *kwds)
else {
if (add_dict) {
if (base->tp_itemsize)
- type->tp_dictoffset = -sizeof(PyObject *);
+ type->tp_dictoffset = -(long)sizeof(PyObject *);
else
type->tp_dictoffset = slotoffset;
slotoffset += sizeof(PyObject *);