diff --git a/tryton/gui/window/view_form/view/form.py b/tryton/gui/window/view_form/view/form.py
index 44124e4cac..c967fc186d 100644
--- a/tryton/gui/window/view_form/view/form.py
+++ b/tryton/gui/window/view_form/view/form.py
@@ -163,6 +163,7 @@ class ViewForm(ParserView):
 
     def button_clicked(self, widget):
         record = self.screen.current_record
+        self.set_value()
         fields = self.get_fields()
         if not record.validate(fields):
             self.screen.display()