diff --git a/models/acc_contract.py b/models/acc_contract.py
index 5c8be7c72ec2aa2748c5f1673b6be64e74985d67..3fd5c7cf3640184705d79c3f49b76e118457439d 100644
--- a/models/acc_contract.py
+++ b/models/acc_contract.py
@@ -26,7 +26,7 @@ class AccContract(models.Model):
     )
     start_date = fields.Date("Début du contrat")
     end_date = fields.Date("Fin du contrat")
-    document = fields.Binary("Document attaché", required=True)
+    document = fields.Binary("Document attaché", required=True, attachment=True)
     name = fields.Char("Nom du document")
     # ------------------------------------------------------
     # SQL Constraints