diff --git a/authentic/sessions.py b/authentic/sessions.py
index 78a4533..4fd31e1 100644
--- a/authentic/sessions.py
+++ b/authentic/sessions.py
@@ -86,7 +86,7 @@ class BasicSession(Session, CaptchaSession, StorableObject):
     def set_service(self, value):
         self._service = value
 
-    _not_cleaned = ('_service')
+    _not_cleaned = ('_service','after_url')
     _to_remove = ('login_tokens')
 
     def clean_data(self):