diff --git a/models/res_partner.py b/models/res_partner.py
index 47fcdfdf4e1dc121cd714ef633c8d57f45e901fc..277693a49812a1b30d555d8c3fdbae72231549aa 100644
--- a/models/res_partner.py
+++ b/models/res_partner.py
@@ -1071,7 +1071,7 @@ class ScopPartner(models.Model):
                 else:
                     zip_departement = zip_starts[:2]
 
-                if zip_departement in ["2A", "2B"] or int(zip_departement):
+                if zip_departement in ["2A", "2B"] or zip_departement.isdigit():
                     company.zip_departement = zip_departement
                 else:
                     company.zip_departement = False