Rename _Py_identifier to _Py_IDENTIFIER.
diff --git a/Modules/pyexpat.c b/Modules/pyexpat.c
index 45ab70e..1bc4ffa 100644
--- a/Modules/pyexpat.c
+++ b/Modules/pyexpat.c
@@ -843,7 +843,7 @@
 {
     int rv = 1;
     PyObject *readmethod = NULL;
-    _Py_identifier(read);
+    _Py_IDENTIFIER(read);
 
     readmethod = _PyObject_GetAttrId(f, &PyId_read);
     if (readmethod == NULL) {