diff --git a/commission_simple/__manifest__.py b/commission_simple/__manifest__.py
index d98badc..1ec3a95 100644
--- a/commission_simple/__manifest__.py
+++ b/commission_simple/__manifest__.py
@@ -43,5 +43,5 @@ This module has been written by Alexis de Lattre from Akretion
         'views/account_move_line.xml',
         'wizards/commission_compute_view.xml',
         ],
-    'installable': False,
+    'installable': True,
 }
diff --git a/commission_simple/models/account_invoice_report.py b/commission_simple/models/account_invoice_report.py
index f703b11..4f21f79 100644
--- a/commission_simple/models/account_invoice_report.py
+++ b/commission_simple/models/account_invoice_report.py
@@ -3,6 +3,7 @@
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
 from odoo import api, fields, models
+from odoo.tools import SQL
 
 
 class AccountInvoiceReport(models.Model):
@@ -11,7 +12,5 @@ class AccountInvoiceReport(models.Model):
     commission_amount = fields.Float(readonly=True)
 
     @api.model
-    def _select(self):
-        select_str = super()._select()
-        select_str += ", line.commission_amount * currency_table.rate AS commission_amount"
-        return select_str
+    def _select(self) -> SQL:
+        return SQL("%s, line.commission_amount * account_currency_table.rate AS commission_amount", super()._select())
diff --git a/commission_simple/views/commission_profile.xml b/commission_simple/views/commission_profile.xml
index a103153..cda91d1 100644
--- a/commission_simple/views/commission_profile.xml
+++ b/commission_simple/views/commission_profile.xml
@@ -36,7 +36,7 @@
                                 <field name="assign_type"/>
                                 <field name="user_id" required="assign_type == 'user'" readonly="assign_type != 'user'"/>
                                 <field name="company_id" groups="base.group_multi_company"/>
-                                <field name="company_id" invisible="1"/>
+                                <field name="company_id" column_invisible="1"/>
                             </list>
                         </field>
                     </page>
diff --git a/commission_simple_agent/__manifest__.py b/commission_simple_agent/__manifest__.py
index 556190d..487cf35 100644
--- a/commission_simple_agent/__manifest__.py
+++ b/commission_simple_agent/__manifest__.py
@@ -18,5 +18,5 @@
         'views/commission_profile.xml',
         'views/commission_result.xml',
         ],
-    'installable': False,
+    'installable': True,
 }
diff --git a/commission_simple_agent_purchase/__manifest__.py b/commission_simple_agent_purchase/__manifest__.py
index a8f3221..2d68895 100644
--- a/commission_simple_agent_purchase/__manifest__.py
+++ b/commission_simple_agent_purchase/__manifest__.py
@@ -19,5 +19,5 @@
         'views/commission_profile.xml',
         'wizards/res_config_settings.xml',
         ],
-    'installable': False,
+    'installable': True,
 }
diff --git a/commission_simple_agent_purchase/wizards/res_config_settings.xml b/commission_simple_agent_purchase/wizards/res_config_settings.xml
index c04d3f3..7f4bab1 100644
--- a/commission_simple_agent_purchase/wizards/res_config_settings.xml
+++ b/commission_simple_agent_purchase/wizards/res_config_settings.xml
@@ -21,6 +21,7 @@
                 <setting id="commission_po_config" title="Purchase Order">
                     <field name="commission_po_config" />
                 </setting>
+            </block>
         </xpath>
     </field>
 </record>
diff --git a/sale_agent/__manifest__.py b/sale_agent/__manifest__.py
index ab41da9..ceb40be 100644
--- a/sale_agent/__manifest__.py
+++ b/sale_agent/__manifest__.py
@@ -19,5 +19,5 @@
         "views/account_invoice_report.xml",
         ],
     'demo': ['demo/demo.xml'],
-    'installable': False,
+    'installable': True,
 }