diff --git a/addons/crm/__manifest__.py b/addons/crm/__manifest__.py
index 55e0bcd8780..722950735fd 100644
--- a/addons/crm/__manifest__.py
+++ b/addons/crm/__manifest__.py
@@ -4,7 +4,7 @@
 
 {
     'name': 'CRM',
-    'version': '1.6',
+    'version': '1.7',
     'category': 'Sales/CRM',
     'sequence': 15,
     'summary': 'Track leads and close opportunities',
diff --git a/addons/crm/data/crm_lead_merge_template.xml b/addons/crm/data/crm_lead_merge_template.xml
index a46087183db..af9e485123b 100644
--- a/addons/crm/data/crm_lead_merge_template.xml
+++ b/addons/crm/data/crm_lead_merge_template.xml
@@ -40,8 +40,8 @@
                 <div t-if="lead.priority">
                     Priority: <span t-field="lead.priority"/>
                 </div>
-                <div t-if="lead.lost_reason">
-                    Lost Reason: <span t-field="lead.lost_reason"/>
+                <div t-if="lead.lost_reason_id">
+                    Lost Reason: <span t-field="lead.lost_reason_id"/>
                 </div>
                 <div>
                     Created on: <span t-field="lead.create_date"/>
diff --git a/addons/crm/models/crm_lead.py b/addons/crm/models/crm_lead.py
index 1f3daa6d1c9..61c8adfba25 100644
--- a/addons/crm/models/crm_lead.py
+++ b/addons/crm/models/crm_lead.py
@@ -213,7 +213,7 @@ class Lead(models.Model):
     automated_probability = fields.Float('Automated Probability', compute='_compute_probabilities', readonly=True, store=True)
     is_automated_probability = fields.Boolean('Is automated probability?', compute="_compute_is_automated_probability")
     # Won/Lost
-    lost_reason = fields.Many2one(
+    lost_reason_id = fields.Many2one(
         'crm.lost.reason', string='Lost Reason',
         index=True, ondelete='restrict', tracking=True)
     # Statistics
@@ -901,7 +901,7 @@ class Lead(models.Model):
         activated = self.filtered(lambda lead: lead.active)
         archived = self.filtered(lambda lead: not lead.active)
         if activated:
-            activated.write({'lost_reason': False})
+            activated.write({'lost_reason_id': False})
             activated._compute_probabilities()
         if archived:
             archived.write({'probability': 0, 'automated_probability': 0})
@@ -1355,9 +1355,9 @@ class Lead(models.Model):
             'type': lambda fname, leads: 'opportunity' if any(lead.type == 'opportunity' for lead in leads) else 'lead',
             'priority': lambda fname, leads: max(leads.mapped('priority')) if leads else False,
             'tag_ids': lambda fname, leads: leads.mapped('tag_ids'),
-            'lost_reason': lambda fname, leads:
+            'lost_reason_id': lambda fname, leads:
                 False if leads and leads[0].probability
-                else next((lead.lost_reason for lead in leads if lead.lost_reason), False),
+                else next((lead.lost_reason_id for lead in leads if lead.lost_reason_id), False),
         }
 
     def _merge_get_fields(self):
@@ -1723,7 +1723,7 @@ class Lead(models.Model):
         self.ensure_one()
         if 'stage_id' in init_values and self.probability == 100 and self.stage_id:
             return self.env.ref('crm.mt_lead_won')
-        elif 'lost_reason' in init_values and self.lost_reason:
+        elif 'lost_reason_id' in init_values and self.lost_reason_id:
             return self.env.ref('crm.mt_lead_lost')
         elif 'stage_id' in init_values:
             return self.env.ref('crm.mt_lead_stage')
diff --git a/addons/crm/models/crm_lost_reason.py b/addons/crm/models/crm_lost_reason.py
index 4b848acbc5f..714a984db68 100644
--- a/addons/crm/models/crm_lost_reason.py
+++ b/addons/crm/models/crm_lost_reason.py
@@ -13,8 +13,12 @@ class LostReason(models.Model):
     leads_count = fields.Integer('Leads Count', compute='_compute_leads_count')
 
     def _compute_leads_count(self):
-        lead_data = self.env['crm.lead'].with_context(active_test=False).read_group([('lost_reason', 'in', self.ids)], ['lost_reason'], ['lost_reason'])
-        mapped_data = dict((data['lost_reason'][0], data['lost_reason_count']) for data in lead_data)
+        lead_data = self.env['crm.lead'].with_context(active_test=False).read_group(
+            [('lost_reason_id', 'in', self.ids)],
+            ['lost_reason_id'],
+            ['lost_reason_id']
+        )
+        mapped_data = dict((data['lost_reason_id'][0], data['lost_reason_id_count']) for data in lead_data)
         for reason in self:
             reason.leads_count = mapped_data.get(reason.id, 0)
 
@@ -22,7 +26,7 @@ class LostReason(models.Model):
         return {
             'name': _('Leads'),
             'view_mode': 'tree,form',
-            'domain': [('lost_reason', 'in', self.ids)],
+            'domain': [('lost_reason_id', 'in', self.ids)],
             'res_model': 'crm.lead',
             'type': 'ir.actions.act_window',
             'context': {'create': False, 'active_test': False},
diff --git a/addons/crm/report/crm_opportunity_report_views.xml b/addons/crm/report/crm_opportunity_report_views.xml
index 42347272642..8f8a7432ea6 100644
--- a/addons/crm/report/crm_opportunity_report_views.xml
+++ b/addons/crm/report/crm_opportunity_report_views.xml
@@ -105,7 +105,7 @@
                         <filter string="Conversion Date" context="{'group_by':'date_conversion:month'}" name="conversion_date" help="Conversion Date from Lead to Opportunity" groups="crm.group_use_lead"/>
                         <filter string="Expected Closing" context="{'group_by':'date_deadline:month'}" name="date_deadline"/>
                         <filter string="Closed Date" context="{'group_by':'date_closed'}" name="date_closed_groupby"/>
-                        <filter string="Lost Reason" name="lostreason" context="{'group_by':'lost_reason'}"/>
+                        <filter string="Lost Reason" name="lostreason" context="{'group_by':'lost_reason_id'}"/>
                     </group>
                 </search>
             </field>
diff --git a/addons/crm/tests/test_crm_lead_lost.py b/addons/crm/tests/test_crm_lead_lost.py
index 735d3ec2ed3..e7dd92669fc 100644
--- a/addons/crm/tests/test_crm_lead_lost.py
+++ b/addons/crm/tests/test_crm_lead_lost.py
@@ -34,7 +34,7 @@ class TestLeadConvert(crm_common.TestCrmCommon):
         self.flush_tracking()
 
         lead = self.env['crm.lead'].browse(self.lead_1.ids)
-        self.assertFalse(lead.lost_reason)
+        self.assertFalse(lead.lost_reason_id)
         self.assertEqual(lead.probability, 32)
         self.assertEqual(len(lead.message_ids), 2, 'Should have tracked new responsible')
         update_message = lead.message_ids[0]
@@ -54,7 +54,7 @@ class TestLeadConvert(crm_common.TestCrmCommon):
         # check lead update
         self.assertFalse(lead.active)
         self.assertEqual(lead.automated_probability, 0)
-        self.assertEqual(lead.lost_reason, self.lost_reason)  # TDE FIXME: should be called lost_reason_id non didjou
+        self.assertEqual(lead.lost_reason_id, self.lost_reason)  # TDE FIXME: should be called lost_reason_id non didjou
         self.assertEqual(lead.probability, 0)
         # check messages
         self.assertEqual(len(lead.message_ids), 3, 'Should have logged a tracking message for lost lead with reason')
@@ -64,7 +64,7 @@ class TestLeadConvert(crm_common.TestCrmCommon):
         self.assertTracking(
             update_message,
             [('active', 'boolean', True, False),
-             ('lost_reason', 'many2one', False, self.lost_reason)
+             ('lost_reason_id', 'many2one', False, self.lost_reason)
             ]
         )
 
@@ -90,7 +90,7 @@ class TestLeadConvert(crm_common.TestCrmCommon):
             self.assertFalse(lead.active)
             self.assertEqual(lead.automated_probability, 0)
             self.assertEqual(lead.probability, 0)
-            self.assertEqual(lead.lost_reason, self.lost_reason)
+            self.assertEqual(lead.lost_reason_id, self.lost_reason)
             # check messages
             self.assertEqual(len(lead.message_ids), 3, 'Should have 3 messages: creation, lost, and log')
             lost_message = lead.message_ids.filtered(lambda msg: msg.subtype_id == self.env.ref('crm.mt_lead_lost'))
@@ -98,7 +98,7 @@ class TestLeadConvert(crm_common.TestCrmCommon):
             self.assertTracking(
                 lost_message,
                 [('active', 'boolean', True, False),
-                 ('lost_reason', 'many2one', False, self.lost_reason)
+                 ('lost_reason_id', 'many2one', False, self.lost_reason)
                 ]
             )
             note_message = lead.message_ids.filtered(lambda msg: msg.subtype_id == self.env.ref('mail.mt_note'))
diff --git a/addons/crm/tests/test_crm_lead_merge.py b/addons/crm/tests/test_crm_lead_merge.py
index bbf73b70155..9f5b8bb2dfa 100644
--- a/addons/crm/tests/test_crm_lead_merge.py
+++ b/addons/crm/tests/test_crm_lead_merge.py
@@ -307,7 +307,7 @@ class TestLeadMerge(TestLeadMergeCommon):
         # because "lead_1" is not lost
         lost_reason = self.env['crm.lost.reason'].create({'name': 'Test Reason'})
         self.lead_w_partner.write({
-            'lost_reason': lost_reason,
+            'lost_reason_id': lost_reason,
             'probability': 0,
         })
 
@@ -317,7 +317,7 @@ class TestLeadMerge(TestLeadMergeCommon):
                                    name='Nibbler Spacecraft Request',
                                    partner_id=self.contact_company_1,
                                    priority='2',
-                                   lost_reason=False,
+                                   lost_reason_id=False,
                                    tag_ids=all_tags):
             leads._merge_opportunity(auto_unlink=False, max_length=None)
 
@@ -331,11 +331,11 @@ class TestLeadMerge(TestLeadMergeCommon):
         })
 
         lost_reason = self.env['crm.lost.reason'].create({'name': 'Test Reason'})
-        self.lead_w_partner.lost_reason = lost_reason
+        self.lead_w_partner.lost_reason_id = lost_reason
 
         leads = self.env['crm.lead'].browse(self.leads.ids)._sort_by_confidence_level(reverse=True)
 
-        with self.assertLeadMerged(leads[0], leads, lost_reason=lost_reason):
+        with self.assertLeadMerged(leads[0], leads, lost_reason_id=lost_reason):
             leads._merge_opportunity(auto_unlink=False, max_length=None)
 
     @users('user_sales_manager')
diff --git a/addons/crm/views/crm_lead_views.xml b/addons/crm/views/crm_lead_views.xml
index 277d07edb80..44127d2899d 100644
--- a/addons/crm/views/crm_lead_views.xml
+++ b/addons/crm/views/crm_lead_views.xml
@@ -246,7 +246,7 @@
                                 <field name="tag_ids" widget="many2many_tags" options="{'color_field': 'color', 'no_create_edit': True}"/>
                             </group>
                             <group name="opportunity_info" attrs="{'invisible': [('type', '=', 'lead')]}">
-                                <field name="lost_reason" attrs="{'invisible': [('active', '=', True)]}"/>
+                                <field name="lost_reason_id" attrs="{'invisible': [('active', '=', True)]}"/>
                                 <field name="date_conversion" invisible="1"/>
                                 <field name="company_id" groups="base.group_multi_company"/>
                                 <field name="user_company_ids" invisible="1"/>
@@ -985,7 +985,7 @@
                         <filter name="stage" string="Stage" context="{'group_by':'stage_id'}"/>
                         <filter name="city" string="City" context="{'group_by': 'city'}"/>
                         <filter string="Country" name="country" context="{'group_by':'country_id'}" />
-                        <filter string="Lost Reason" name="lostreason" context="{'group_by':'lost_reason'}"/>
+                        <filter string="Lost Reason" name="lostreason" context="{'group_by':'lost_reason_id'}"/>
                         <filter string="Company" name="company" context="{'group_by':'company_id'}" groups="base.group_multi_company"/>
                         <filter string="Campaign" name="compaign" domain="[]" context="{'group_by':'campaign_id'}"/>
                         <filter string="Medium" name="medium" domain="[]" context="{'group_by':'medium_id'}"/>
diff --git a/addons/crm/wizard/crm_lead_lost.py b/addons/crm/wizard/crm_lead_lost.py
index f2ca5958544..66b36754c6f 100644
--- a/addons/crm/wizard/crm_lead_lost.py
+++ b/addons/crm/wizard/crm_lead_lost.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
-from odoo import fields, models, _
+from odoo import fields, models
 from odoo.tools.mail import is_html_empty
 
 
@@ -18,7 +18,7 @@ class CrmLeadLost(models.TransientModel):
     def action_lost_reason_apply(self):
         self.ensure_one()
         leads = self.env['crm.lead'].browse(self.env.context.get('active_ids'))
-        res = leads.action_set_lost(lost_reason=self.lost_reason_id.id)
+        res = leads.action_set_lost(lost_reason_id=self.lost_reason_id.id)
         if not is_html_empty(self.lost_feedback):
             leads._message_log_batch(
                 bodies=dict(