diff --git a/requests/status_codes.py b/requests/status_codes.py
index 299b9037..ae7241c9 100644
--- a/requests/status_codes.py
+++ b/requests/status_codes.py
@@ -8,7 +8,7 @@ _codes = {
     102: ('processing',),
     103: ('checkpoint',),
     122: ('uri_too_long', 'request_uri_too_long'),
-    200: ('ok', 'okay', 'all_ok', 'all_okay', 'all_good', r'\o/'),
+    200: ('ok', 'okay', 'all_ok', 'all_okay', 'all_good', '\\o/'),
     201: ('created',),
     202: ('accepted',),
     203: ('non_authoritative_info', 'non_authoritative_information'),
@@ -71,5 +71,5 @@ codes = LookupDict(name='status_codes')
 for (code, titles) in _codes.items():
     for title in titles:
         setattr(codes, title, code)
-        if not title.startswith(r'\'):
+        if not title.startswith('\\'):
             setattr(codes, title.upper(), code)
\ No newline at end of file