diff -r ae76a1046bb9 Modules/_csv.c
--- a/Modules/_csv.c	Wed Mar 16 14:30:16 2016 +0100
+++ b/Modules/_csv.c	Sun Mar 27 10:04:17 2016 +0200
@@ -771,7 +771,7 @@
         else if (c == '\0')
             self->state = START_RECORD;
         else {
-            PyErr_Format(_csvstate_global->error_obj, "new-line character seen in unquoted field - do you need to open the file in universal-newline mode?");
+            PyErr_Format(_csvstate_global->error_obj, "new-line character seen in unquoted field - do you need to open the file with newline=None?");
             return -1;
         }
         break;