@@ -218,7 +218,7 @@ class Preferences(object):
218218 'locale': EnumStringSetting(settings['ui']['default_locale'],
219219 choices=settings['locales'].keys()),
220220 'autocomplete': EnumStringSetting(settings['search']['autocomplete'],
221− choices=autocomplete.backends.keys()),
221+ choices=autocomplete.backends.keys() + ['']),
222222 'image_proxy': MapSetting(settings['server']['image_proxy'],
223223 map={'': settings['server']['image_proxy'],
224224 '0': False,