diff --git a/weboob/capabilities/collection.py b/weboob/capabilities/collection.py
index a7f3e8be..da280587 100644
--- a/weboob/capabilities/collection.py
+++ b/weboob/capabilities/collection.py
@@ -83,7 +83,7 @@ class Collection(BaseCollection):
     title = StringField('Collection title')
     split_path = Field('Full collection path', list)
 
-    def __init__(self, split_path, title=None):
+    def __init__(self, split_path=None, title=None):
         self.title = title
         BaseCollection.__init__(self, split_path)