diff --git a/addons/account/account_move_line.py b/addons/account/account_move_line.py
index b0b7815ad3c..48b2591485d 100644
--- a/addons/account/account_move_line.py
+++ b/addons/account/account_move_line.py
@@ -559,10 +559,11 @@ class account_move_line(osv.osv):
     ]
 
     def _auto_init(self, cr, context=None):
-        super(account_move_line, self)._auto_init(cr, context=context)
+        res = super(account_move_line, self)._auto_init(cr, context=context)
         cr.execute('SELECT indexname FROM pg_indexes WHERE indexname = \'account_move_line_journal_id_period_id_index\'')
         if not cr.fetchone():
             cr.execute('CREATE INDEX account_move_line_journal_id_period_id_index ON account_move_line (journal_id, period_id)')
+        return res
 
     def _check_no_view(self, cr, uid, ids, context=None):
         lines = self.browse(cr, uid, ids, context=context)
diff --git a/addons/hr_recruitment/hr_recruitment.py b/addons/hr_recruitment/hr_recruitment.py
index b0b60db6bd5..e41d80fb348 100644
--- a/addons/hr_recruitment/hr_recruitment.py
+++ b/addons/hr_recruitment/hr_recruitment.py
@@ -510,8 +510,9 @@ class hr_job(osv.osv):
 
     def _auto_init(self, cr, context=None):
         """Installation hook to create aliases for all jobs and avoid constraint errors."""
-        self.pool.get('mail.alias').migrate_to_alias(cr, self._name, self._table, super(hr_job,self)._auto_init,
+        res = self.pool.get('mail.alias').migrate_to_alias(cr, self._name, self._table, super(hr_job,self)._auto_init,
             self._columns['alias_id'], 'name', alias_prefix='job+', alias_defaults={'job_id': 'id'}, context=context)
+        return res
 
     def create(self, cr, uid, vals, context=None):
         mail_alias = self.pool.get('mail.alias')
diff --git a/addons/mail/mail_alias.py b/addons/mail/mail_alias.py
index f806b325291..8730599ad72 100644
--- a/addons/mail/mail_alias.py
+++ b/addons/mail/mail_alias.py
@@ -160,7 +160,7 @@ class mail_alias(osv.Model):
         alias_id_column.required = False
 
         # call _auto_init
-        child_model_auto_init_fct(cr, context=context)
+        res = child_model_auto_init_fct(cr, context=context)
 
         registry = RegistryManager.get(cr.dbname)
         mail_alias = registry.get('mail.alias')
@@ -188,6 +188,8 @@ class mail_alias(osv.Model):
         # set back the unique alias_id constraint
         alias_id_column.required = True
 
+        return res
+
     def create_unique_alias(self, cr, uid, vals, model_name=None, context=None):
         """Creates an email.alias record according to the values provided in ``vals``,
         with 2 alterations: the ``alias_name`` value may be suffixed in order to
diff --git a/addons/mail/res_users.py b/addons/mail/res_users.py
index f7c91939b98..5545745b235 100644
--- a/addons/mail/res_users.py
+++ b/addons/mail/res_users.py
@@ -60,8 +60,9 @@ class res_users(osv.Model):
     def _auto_init(self, cr, context=None):
         """ Installation hook: aliases, partner following themselves """
         # create aliases for all users and avoid constraint errors
-        self.pool.get('mail.alias').migrate_to_alias(cr, self._name, self._table, super(res_users, self)._auto_init,
+        res = self.pool.get('mail.alias').migrate_to_alias(cr, self._name, self._table, super(res_users, self)._auto_init,
             self._columns['alias_id'], 'login', alias_force_key='id', context=context)
+        return res
 
     def create(self, cr, uid, data, context=None):
         # create default alias same as the login