diff --git a/session_redis/__manifest__.py b/session_redis/__manifest__.py
index 31c5f07..ff7b96f 100644
--- a/session_redis/__manifest__.py
+++ b/session_redis/__manifest__.py
@@ -1,10 +1,10 @@
-# Copyright 2016-2018 Camptocamp SA
+# Copyright 2016-2019 Camptocamp SA
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html)
 
 
 {'name': 'Sessions in Redis',
  'summary': 'Store web sessions in Redis',
- 'version': '12.0.1.0.0',
+ 'version': '13.0.1.0.0',
  'author': 'Camptocamp,Odoo Community Association (OCA)',
  'license': 'AGPL-3',
  'category': 'Extra Tools',
@@ -14,5 +14,5 @@
  },
  'website': 'http://www.camptocamp.com',
  'data': [],
- 'installable': False,
+ 'installable': True,
  }
diff --git a/session_redis/http.py b/session_redis/http.py
index 1841497..e089f82 100644
--- a/session_redis/http.py
+++ b/session_redis/http.py
@@ -1,4 +1,4 @@
-# Copyright 2016-2018 Camptocamp SA
+# Copyright 2016-2019 Camptocamp SA
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html)
 
 import logging
diff --git a/session_redis/session.py b/session_redis/session.py
index cbac67f..483daac 100644
--- a/session_redis/session.py
+++ b/session_redis/session.py
@@ -1,4 +1,4 @@
-# Copyright 2016-2018 Camptocamp SA
+# Copyright 2016-2019 Camptocamp SA
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html)
 
 import json
@@ -18,7 +18,7 @@ class RedisSessionStore(SessionStore):
 
     def __init__(self, redis, session_class=None,
                  prefix='', expiration=None):
-        super(RedisSessionStore, self).__init__(session_class=session_class)
+        super().__init__(session_class=session_class)
         self.redis = redis
         if expiration is None:
             self.expiration = DEFAULT_SESSION_TIMEOUT