diff --git a/partner_ref_unique/__manifest__.py b/partner_ref_unique/__manifest__.py
index 9b58a6323..b9b7016ee 100644
--- a/partner_ref_unique/__manifest__.py
+++ b/partner_ref_unique/__manifest__.py
@@ -5,7 +5,7 @@
 {
     "name": "Partner unique reference",
     "summary": "Add an unique constraint to partner ref field",
-    "version": "12.0.1.0.1",
+    "version": "12.0.1.0.2",
     "category": "Customer Relationship Management",
     "website": "https://github.com/OCA/partner-contact/",
     "author": "Tecnativa, "
diff --git a/partner_ref_unique/hooks.py b/partner_ref_unique/hooks.py
index 8de3c4283..2a51c94f5 100644
--- a/partner_ref_unique/hooks.py
+++ b/partner_ref_unique/hooks.py
@@ -1,4 +1,4 @@
-# Copyright 2019 Camptocamp SA
+# Copyright 2020 Camptocamp SA
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl)
 import logging
 
@@ -10,6 +10,15 @@ def pre_init_hook(cr):
     :param odoo.sql_db.Cursor cr:
         Database cursor.
     """
+    _logger.info("Creating res.company.partner_ref_unique column")
+    cr.execute("ALTER TABLE res_company ADD partner_ref_unique varchar NULL;")
+    cr.execute(
+        "COMMENT ON COLUMN public.res_company.partner_ref_unique "
+        "IS 'Unique partner reference for';"
+    )
+    cr.execute(
+        "UPDATE res_company SET partner_ref_unique = 'none';"
+    )
     _logger.info(
         "Creating res.partner.partner_ref_unique column with value from "
         "res.company"
diff --git a/partner_ref_unique/i18n/partner_ref_unique.pot b/partner_ref_unique/i18n/partner_ref_unique.pot
index 1130f45b4..d0cefa2b8 100644
--- a/partner_ref_unique/i18n/partner_ref_unique.pot
+++ b/partner_ref_unique/i18n/partner_ref_unique.pot
@@ -44,13 +44,15 @@ msgid "Partners"
 msgstr ""
 
 #. module: partner_ref_unique
-#: code:addons/partner_ref_unique/models/res_partner.py:31
+#: code:addons/partner_ref_unique/models/res_partner.py:37
 #, python-format
 msgid "This reference is equal to partner '%s'"
 msgstr ""
 
 #. module: partner_ref_unique
 #: model:ir.model.fields,field_description:partner_ref_unique.field_res_company__partner_ref_unique
+#: model:ir.model.fields,field_description:partner_ref_unique.field_res_partner__partner_ref_unique
+#: model:ir.model.fields,field_description:partner_ref_unique.field_res_users__partner_ref_unique
 msgid "Unique partner reference for"
 msgstr ""