diff --git a/src/calibre/gui2/actions/show_book_details.py b/src/calibre/gui2/actions/show_book_details.py
index 83e570d7b6..520d0522c9 100644
--- a/src/calibre/gui2/actions/show_book_details.py
+++ b/src/calibre/gui2/actions/show_book_details.py
@@ -5,6 +5,7 @@ __license__   = 'GPL v3'
 __copyright__ = '2010, Kovid Goyal <kovid@kovidgoyal.net>'
 __docformat__ = 'restructuredtext en'
 
+from PyQt4.Qt import Qt
 
 from calibre.gui2.actions import InterfaceAction
 from calibre.gui2.dialogs.book_info import BookInfo
@@ -20,6 +21,7 @@ class ShowBookDetailsAction(InterfaceAction):
 
     def genesis(self):
         self.qaction.triggered.connect(self.show_book_info)
+        self.memory = []
 
     def show_book_info(self, *args):
         if self.gui.current_view() is not self.gui.library_view:
@@ -29,6 +31,16 @@ class ShowBookDetailsAction(InterfaceAction):
             return
         index = self.gui.library_view.currentIndex()
         if index.isValid():
-            BookInfo(self.gui, self.gui.library_view, index,
-                    self.gui.book_details.handle_click).show()
+            d = BookInfo(self.gui, self.gui.library_view, index,
+                    self.gui.book_details.handle_click)
+            self.memory.append(d)
+            d.closed.connect(self.closed, type=Qt.QueuedConnection)
+            d.show()
+
+    def closed(self, d):
+        try:
+            d.closed.disconnect(self.closed)
+            self.memory.remove(d)
+        except ValueError:
+            pass
 
diff --git a/src/calibre/gui2/dialogs/book_info.py b/src/calibre/gui2/dialogs/book_info.py
index cf79c224cd..898058a74d 100644
--- a/src/calibre/gui2/dialogs/book_info.py
+++ b/src/calibre/gui2/dialogs/book_info.py
@@ -4,7 +4,7 @@ __copyright__ = '2008, Kovid Goyal kovid@kovidgoyal.net'
 __docformat__ = 'restructuredtext en'
 
 
-from PyQt4.Qt import (QCoreApplication, QModelIndex, QTimer, Qt,
+from PyQt4.Qt import (QCoreApplication, QModelIndex, QTimer, Qt, pyqtSignal,
     QDialog, QPixmap, QIcon, QSize, QPalette, QShortcut, QKeySequence)
 
 from calibre.gui2.dialogs.book_info_ui import Ui_BookInfo
@@ -14,6 +14,8 @@ from calibre.gui2.book_details import render_html
 
 class BookInfo(QDialog, Ui_BookInfo):
 
+    closed = pyqtSignal(object)
+
     def __init__(self, parent, view, row, link_delegate):
         QDialog.__init__(self, parent)
         Ui_BookInfo.__init__(self)
@@ -59,6 +61,11 @@ class BookInfo(QDialog, Ui_BookInfo):
         link = unicode(qurl.toString())
         self.link_delegate(link)
 
+    def done(self, r):
+        ret = QDialog.done(self, r)
+        self.closed.emit(self)
+        return ret
+
     def cover_changed(self, data):
         if self.current_row is not None:
             id_ = self.view.model().id(self.current_row)