diff --git a/requests/cookies.py b/requests/cookies.py
index 101e617d..241ca679 100644
--- a/requests/cookies.py
+++ b/requests/cookies.py
@@ -1,3 +1,5 @@
+# -*- coding: utf-8 -*-
+
 """
 Compatibility code to be able to use `cookielib.CookieJar` with requests.