diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index e64c960..6d0a44c 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -4821,7 +4821,9 @@
     if (hobj == Py_None) {
         hptr = NULL;
     } else if (PyUnicode_Check(hobj)) {
-        idna = PyObject_CallMethod(hobj, "encode", "s", "idna");
+        _Py_identifier(encode);
+
+        idna = _PyObject_CallMethodId(hobj, &PyId_encode, "s", "idna");
         if (!idna)
             return NULL;
         assert(PyBytes_Check(idna));