diff --git a/Lib/email/message.py b/Lib/email/message.py
index 87fcab68868d46..41fcc2b9778798 100644
--- a/Lib/email/message.py
+++ b/Lib/email/message.py
@@ -564,7 +564,7 @@ def add_header(self, _name, _value, **_params):
 
         msg.add_header('content-disposition', 'attachment', filename='bud.gif')
         msg.add_header('content-disposition', 'attachment',
-                       filename=('utf-8', '', Fußballer.ppt'))
+                       filename=('utf-8', '', 'Fußballer.ppt'))
         msg.add_header('content-disposition', 'attachment',
                        filename='Fußballer.ppt'))
         """