From 54336c28414c693dde23b7eb329b6633b898fd0e Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Wed, 15 Dec 2010 13:56:50 -0700
Subject: [PATCH] ...

---
 src/calibre/gui2/add.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/calibre/gui2/add.py b/src/calibre/gui2/add.py
index 601c620e9c..026fabea07 100644
--- a/src/calibre/gui2/add.py
+++ b/src/calibre/gui2/add.py
@@ -369,8 +369,13 @@ class Adder(QObject): # {{{
                 except:
                     pass
         self._parent = None
+        self.pd.setParent(None)
+        del self.pd
+        self.pd = None
         if hasattr(self, 'db_adder'):
             self.db_adder.setParent(None)
+            del self.db_adder
+            self.db_adder = None
 
 
     @property