diff --git a/tryton/gui/window/view_form/view/form_gtk/calendar.py b/tryton/gui/window/view_form/view/form_gtk/calendar.py
index c3c767d513..bfab5539db 100644
--- a/tryton/gui/window/view_form/view/form_gtk/calendar.py
+++ b/tryton/gui/window/view_form/view/form_gtk/calendar.py
@@ -48,8 +48,7 @@ class Calendar(WidgetInterface):
         return self.entry.grab_focus()
 
     def set_value(self, record, field):
-        field.set_client(record, self.entry.get_text())
-        return True
+        field.set_client(record, self.get_value())
 
     def get_value(self):
         return self.entry.date_get(set_text=False)