diff --git a/tryton/gui/window/view_form/view/form_gtk/many2one.py b/tryton/gui/window/view_form/view/form_gtk/many2one.py
index 36b6952201..adc34f2ba0 100644
--- a/tryton/gui/window/view_form/view/form_gtk/many2one.py
+++ b/tryton/gui/window/view_form/view/form_gtk/many2one.py
@@ -136,7 +136,12 @@ class Dialog(object):
         while True:
             res = self.dia.run()
             if res == gtk.RESPONSE_OK:
-                if self.screen.save_current():
+                obj_id = None
+                try:
+                    obj_id = self.screen.save_current()
+                except Exception, exception:
+                    common.process_exception(exception, self.dia)
+                if obj_id:
                     return (True, (self.screen.current_model.id,
                         self.screen.current_model.rec_name()))
                 else: