diff --git a/psycopg/adapter_pint.c b/psycopg/adapter_pint.c
index b7128546..950b6557 100644
--- a/psycopg/adapter_pint.c
+++ b/psycopg/adapter_pint.c
@@ -40,7 +40,7 @@ pint_getquoted(pintObject *self, PyObject *args)
     /* Convert subclass to int to handle IntEnum and other subclasses
      * whose str() is not the number. */
     if (PyLong_CheckExact(self->wrapped)
-#if PY_MAJOR_VERSION < 2
+#if PY_2
         || PyInt_CheckExact(self->wrapped)
 #endif
        ) {