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 8d7abcde29..8f9efc06a1 100644
--- a/tryton/tryton/gui/window/view_form/view/screen_container.py
+++ b/tryton/tryton/gui/window/view_form/view/screen_container.py
@@ -615,10 +615,10 @@ class ScreenContainer(object):
                     for selection in selections:
                         entry.append_text(selection)
                 elif field['type'] in ['selection', 'multiselection']:
-                    selections = tuple(x[1] for x in field['selection'])
+                    selections = [x[1] for x in field['selection']]
                     if field.get('sort', True):
                         selections.sort(key=operator.itemgetter(1))
-                    entry = Selection(selections)
+                    entry = Selection(tuple(selections))
                     entry.set_vexpand(True)
                 elif field['type'] in ('date', 'datetime', 'time'):
                     date_format = common.date_format(