diff --git a/server_environment/__manifest__.py b/server_environment/__manifest__.py
index e1f1d66..b6872be 100644
--- a/server_environment/__manifest__.py
+++ b/server_environment/__manifest__.py
@@ -4,7 +4,7 @@
 
 {
     "name": "server configuration environment files",
-    "version": "12.0.2.0.0",
+    "version": "13.0.2.0.0",
     "depends": [
         "base",
         "base_sparse_field",
diff --git a/server_environment/models/server_env_mixin.py b/server_environment/models/server_env_mixin.py
index cd55277..3b561b1 100644
--- a/server_environment/models/server_env_mixin.py
+++ b/server_environment/models/server_env_mixin.py
@@ -162,7 +162,6 @@ class ServerEnvMixin(models.AbstractModel):
         """
         return self._name.replace(".", "_")
 
-    @api.multi
     def _server_env_section_name(self):
         """Name of the section in the configuration files
 
@@ -172,7 +171,6 @@ class ServerEnvMixin(models.AbstractModel):
         base = self._server_env_global_section_name()
         return ".".join((base, self.name))
 
-    @api.multi
     def _server_env_read_from_config(self, field_name, config_getter):
         self.ensure_one()
         global_section_name = self._server_env_global_section_name()
@@ -196,7 +194,6 @@ class ServerEnvMixin(models.AbstractModel):
             return False
         return value
 
-    @api.multi
     def _server_env_has_key_defined(self, field_name):
         self.ensure_one()
         global_section_name = self._server_env_global_section_name()
@@ -236,8 +233,9 @@ class ServerEnvMixin(models.AbstractModel):
             )
             if default_field:
                 self[field_name] = self[default_field]
+            else:
+                self[field_name] = False
 
-    @api.multi
     def _compute_server_env(self):
         """Read values from environment configuration files
 
@@ -269,7 +267,6 @@ class ServerEnvMixin(models.AbstractModel):
                 elif default_field:
                     record[default_field] = record[field_name]
 
-    @api.multi
     def _compute_server_env_is_editable(self):
         """Compute <field>_is_editable values
 
diff --git a/server_environment/serv_config.xml b/server_environment/serv_config.xml
index 6109ef5..cd8c305 100644
--- a/server_environment/serv_config.xml
+++ b/server_environment/serv_config.xml
@@ -3,7 +3,6 @@
     <act_window id="act_show_config_window"
         name="Server Environment"
         res_model="server.config"
-        view_type="form"
         view_mode="form"/>
 
     <menuitem