diff --git a/tests/storage/__init__.py b/tests/storage/__init__.py
index cbc5c1f..20803d0 100644
--- a/tests/storage/__init__.py
+++ b/tests/storage/__init__.py
@@ -178,3 +178,7 @@ class StorageTests(object):
             (href, etag) for href, item, etag
             in s.get_multi(href for href, etag in iteritems(info))
         ) == info
+
+    def test_repr(self):
+        s = self._get_storage()
+        assert self.storage_class.__name__ in repr(s)
diff --git a/vdirsyncer/storage/dav.py b/vdirsyncer/storage/dav.py
index 7ed2c97..9d776c7 100644
--- a/vdirsyncer/storage/dav.py
+++ b/vdirsyncer/storage/dav.py
@@ -264,6 +264,10 @@ class DavStorage(Storage):
                                   useragent, dav_header=self.dav_header)
         self.collection = collection
 
+        # defined for _repr_attributes
+        self.username = username  
+        self.url = url
+
     @classmethod
     def discover(cls, url, **kwargs):
         if kwargs.pop('collection', None) is not None: