diff --git a/src/calibre/gui2/actions/polish.py b/src/calibre/gui2/actions/polish.py
index 5097c6d4d0..50dc70171a 100644
--- a/src/calibre/gui2/actions/polish.py
+++ b/src/calibre/gui2/actions/polish.py
@@ -69,6 +69,7 @@ class Polish(QDialog): # {{{
'remove_jacket':_('
Remove book jacket
%s')%HELP['remove_jacket'],
'remove_unused_css':_('Remove unused CSS rules
%s')%HELP['remove_unused_css'],
'compress_images': _('Losslessly compress images
%s') % HELP['compress_images'],
+ 'upgrade_book': _('Upgrade book internals
%s') % HELP['upgrade_book'],
}
self.l = l = QGridLayout()
@@ -88,6 +89,7 @@ class Polish(QDialog): # {{{
('remove_jacket', _('&Remove a previously inserted book jacket')),
('remove_unused_css', _('Remove &unused CSS rules from the book')),
('compress_images', _('Losslessly &compress images')),
+ ('upgrade_book', _('&Upgrade book internals')),
])
prefs = gprefs.get('polishing_settings', {})
for name, text in self.all_actions.iteritems():