diff --git a/weboob/backends/canaltp/browser.py b/weboob/backends/canaltp/browser.py
index ed46531e..4005b3cd 100644
--- a/weboob/backends/canaltp/browser.py
+++ b/weboob/backends/canaltp/browser.py
@@ -23,8 +23,8 @@ from weboob.tools.misc import to_unicode
 class CanalTP(BaseBrowser):
     DOMAIN = 'widget.canaltp.fr'
 
-    def __init__(self):
-        BaseBrowser.__init__(self, '')
+    def __init__(self, **kwargs):
+        BaseBrowser.__init__(self, '', **kwargs)
 
     def iter_station_search(self, pattern):
         url = u'http://widget.canaltp.fr/Prochains_departs_15122009/dev/gare.php?txtrech=%s' % unicode(pattern)
diff --git a/weboob/backends/transilien/browser.py b/weboob/backends/transilien/browser.py
index 0491173b..6eaf3a37 100644
--- a/weboob/backends/transilien/browser.py
+++ b/weboob/backends/transilien/browser.py
@@ -118,8 +118,9 @@ class Transilien(BaseBrowser):
              'http://www\.transilien\.com/web/ITProchainsTrains\.do\?.*': RoutePage
             }
 
-    def __init__(self):
-        BaseBrowser.__init__(self, '', parser=Parser())
+    def __init__(self, **kwargs):
+        kwargs['parser'] = Parser()
+        BaseBrowser.__init__(self, '', **kwargs)
 
     def iter_station_search(self, pattern):
         pass