diff --git a/models/res_company.py b/models/res_company.py
index dc22b7e622af1c1bbff8b0abd9b19d95c35a72d2..c480e74a62db4c8d1661a18606b2abd71297f787 100755
--- a/models/res_company.py
+++ b/models/res_company.py
@@ -14,7 +14,7 @@ class FumocCompany(models.Model):
     @api.constrains('year_reference_lot')
     def _check_year_reference_lot(self):
         for r in self:
-            if not 2050 < r.year_reference_lot < 2000:
+            if not 2000 < r.year_reference_lot < 2050:
                 raise ValidationError(
                     "L'année de référence renseignée (%s) ne semble pas "
                     "cohérente" % r.year_reference_lot)