diff --git a/dav_submission/views.py b/dav_submission/views.py
index e6aeab9..a1159b0 100644
--- a/dav_submission/views.py
+++ b/dav_submission/views.py
@@ -48,7 +48,7 @@ class ListView(generic.ListView):
                 'group': None,
                 'timestamp': None,
             }
-            with open(metadata_file_path) as f:
+            with codecs.open(metadata_file_path, encoding='utf-8') as f:
                 for line in f:
                     mo = re.match(r'^Absender: (.*) <(.*)>$', line)
                     if mo is not None: