diff --git a/requests/status_codes.py b/requests/status_codes.py
index ff462c6c..813e8c4e 100644
--- a/requests/status_codes.py
+++ b/requests/status_codes.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-"""
+r"""
 The ``codes`` object defines a mapping from common names for HTTP statuses
 to their numerical codes, accessible either as attributes or as dictionary
 items.