diff --git a/sat_frontends/primitivus/xmlui.py b/sat_frontends/primitivus/xmlui.py
index ec1b0a2d..b88f76bb 100644
--- a/sat_frontends/primitivus/xmlui.py
+++ b/sat_frontends/primitivus/xmlui.py
@@ -393,7 +393,7 @@ class WidgetFactory(GenericFactory):
 class XMLUIPanel(xmlui.XMLUIPanel, PrimitivusWidget):
     widget_factory = WidgetFactory()
 
-    def __init__(self, host, parsed_xml, title=None, flags=None, callback=None, ignore=None, profile=C.PROF_KEY_NONE):
+    def __init__(self, host, parsed_xml, title=None, flags=None, callback=None, ignore=None, whitelist=None, profile=C.PROF_KEY_NONE):
         self.widget_factory._xmlui_main = self
         self._dest = None
         xmlui.XMLUIPanel.__init__(self,