diff --git a/server_environment/__manifest__.py b/server_environment/__manifest__.py
index 7f1336e..5d92d47 100644
--- a/server_environment/__manifest__.py
+++ b/server_environment/__manifest__.py
@@ -4,7 +4,7 @@
 
 {
     "name": "server configuration environment files",
-    "version": "15.0.1.0.0",
+    "version": "15.0.1.0.1",
     "depends": ["base", "base_sparse_field"],
     "author": "Camptocamp,Odoo Community Association (OCA)",
     "summary": "move some configurations out of the database",
diff --git a/server_environment/models/server_env_mixin.py b/server_environment/models/server_env_mixin.py
index 1463ae3..7e2ed2f 100644
--- a/server_environment/models/server_env_mixin.py
+++ b/server_environment/models/server_env_mixin.py
@@ -376,7 +376,7 @@ class ServerEnvMixin(models.AbstractModel):
         # (inherits), we want to override it with a new one
         if fieldname not in self._fields or self._fields[fieldname].inherited:
             base_field_cls = base_field.__class__
-            field_args = base_field.args.copy()
+            field_args = base_field.args.copy() if base_field.args else {}
             field_args.pop("_sequence", None)
             field_args.update({"sparse": "server_env_defaults", "automatic": True})