diff --git a/Python/marshal.c b/Python/marshal.c
index b2daff2c..cb11c8c 100644
--- a/Python/marshal.c
+++ b/Python/marshal.c
@@ -1653,7 +1653,7 @@
     s = PyMarshal_WriteObjectToString(value, version);
     if (s == NULL)
         return NULL;
-    res = _PyObject_CallMethodIdObjArgs(file, &PyId_write, s, NULL);
+    res = _PyObject_CallMethodIdOneArg(file, &PyId_write, s);
     Py_DECREF(s);
     return res;
 }