1 files changed, 4 insertions, 3 deletions
diff --git a/Objects/descrobject.c b/Objects/descrobject.c
index ee3ad1b7a3..1b1487a025 100644
--- a/Objects/descrobject.c
+++ b/Objects/descrobject.c
@@ -1675,9 +1675,10 @@ property_copy(PyObject *old, PyObject *get, PyObject *set, PyObject *del)
     Py_DECREF(type);
     if (new == NULL)
         return NULL;
-
-    Py_XINCREF(pold->prop_name);
-    Py_XSETREF(((propertyobject *) new)->prop_name, pold->prop_name);
+    if (PyObject_TypeCheck((new), &PyProperty_Type)) {
+        Py_XINCREF(pold->prop_name);
+        Py_XSETREF(((propertyobject *) new)->prop_name, pold->prop_name);
+    }
     return new;
 }