diff --git a/tryton/tryton/gui/window/view_form/view/screen_container.py b/tryton/tryton/gui/window/view_form/view/screen_container.py
index 0ca477a43b..9262a1c73f 100644
--- a/tryton/tryton/gui/window/view_form/view/screen_container.py
+++ b/tryton/tryton/gui/window/view_form/view/screen_container.py
@@ -2,7 +2,6 @@
 # this repository contains the full copyright notices and license terms.
 import datetime
 import gettext
-import operator
 
 from gi.repository import Gdk, GLib, GObject, Gtk
 
@@ -629,7 +628,7 @@ class ScreenContainer(object):
                 elif field['type'] in ['selection', 'multiselection']:
                     selections = [x[1] for x in field['selection']]
                     if field.get('sort', True):
-                        selections.sort(key=operator.itemgetter(1))
+                        selections.sort()
                     entry = Selection(tuple(selections))
                     entry.set_vexpand(True)
                 elif field['type'] in ('date', 'datetime', 'time'):