diff --git a/src/calibre/gui2/store/config/chooser/results_view.py b/src/calibre/gui2/store/config/chooser/results_view.py
index c098a3d736..3eafc6cdd2 100644
--- a/src/calibre/gui2/store/config/chooser/results_view.py
+++ b/src/calibre/gui2/store/config/chooser/results_view.py
@@ -13,8 +13,8 @@ from calibre.gui2.store.config.chooser.models import Matches, Delegate
 
 class ResultsView(QTreeView):
 
-    def __init__(self, *args):
-        QTreeView.__init__(self,*args)
+    def __init__(self, parent=None):
+        QTreeView.__init__(self,parent)
 
         self._model = Matches([p for p in store_plugins()])
         self.setModel(self._model)