1 files changed, 1 insertions, 1 deletions
diff --git a/Modules/_struct.c b/Modules/_struct.c
index 9281c6803f3..d1c635a3160 100644
--- a/Modules/_struct.c
+++ b/Modules/_struct.c
@@ -2098,7 +2098,7 @@ cache_struct_converter(PyObject *fmt, PyStructObject **ptr)
         return 0;
     }
 
-    s_object = PyObject_CallFunctionObjArgs((PyObject *)(&PyStructType), fmt, NULL);
+    s_object = _PyObject_CallOneArg((PyObject *)(&PyStructType), fmt);
     if (s_object != NULL) {
         if (PyDict_GET_SIZE(cache) >= MAXCACHE)
             PyDict_Clear(cache);