diff --git a/muk_session_store/__manifest__.py b/muk_session_store/__manifest__.py
index 42edd4f..22671c9 100644
--- a/muk_session_store/__manifest__.py
+++ b/muk_session_store/__manifest__.py
@@ -20,7 +20,7 @@
 {
     "name": "MuK Session Store",
     "summary": """Session Store Options""",
-    "version": "12.0.1.0.4",
+    "version": "12.0.1.0.5",
     "category": "Extra Tools",
     "license": "AGPL-3",
     "website": "http://www.mukit.at",
diff --git a/muk_session_store/store/postgres.py b/muk_session_store/store/postgres.py
index 8aacc58..6209905 100644
--- a/muk_session_store/store/postgres.py
+++ b/muk_session_store/store/postgres.py
@@ -1,131 +1,134 @@
-###################################################################################
-#
-#    Copyright (C) 2017 MuK IT GmbH
-#
-#    This program is free software: you can redistribute it and/or modify
-#    it under the terms of the GNU Affero General Public License as
-#    published by the Free Software Foundation, either version 3 of the
-#    License, or (at your option) any later version.
-#
-#    This program is distributed in the hope that it will be useful,
-#    but WITHOUT ANY WARRANTY; without even the implied warranty of
-#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-#    GNU Affero General Public License for more details.
-#
-#    You should have received a copy of the GNU Affero General Public License
-#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
-###################################################################################
-
-import json
-import logging
-import psycopg2
-import functools
-
-from contextlib import closing
-from datetime import datetime, date
-
-from werkzeug.contrib.sessions import SessionStore
-
-from odoo.sql_db import db_connect
-from odoo.tools import config
-
-_logger = logging.getLogger(__name__)
-
-def ensure_cursor(func):
-    @functools.wraps(func)
-    def wrapper(self, *args, **kwargs):
-        for attempts in range(1, 6):
-            try:
-                return func(self, *args, **kwargs)
-            except psycopg2.InterfaceError as error:
-                _logger.info("SessionStore connection failed! (%s/5)" % attempts)
-                if attempts < 5:
-                    self._open_connection()
-                else:
-                    raise error
-    return wrapper
-
-class PostgresSessionStore(SessionStore):
-    
-    def __init__(self, *args, **kwargs):
-        super(PostgresSessionStore, self).__init__(*args, **kwargs)
-        self.dbname = config.get('session_store_dbname', 'session_store')
-        self._open_connection()
-        self._setup_db()
-    
-    def _create_database(self):
-        with closing(db_connect("postgres").cursor()) as cursor:
-            cursor.autocommit(True)
-            cursor.execute("""
-                CREATE DATABASE {dbname} 
-                ENCODING 'unicode'
-                TEMPLATE 'template0';
-            """.format(dbname=self.dbname))
-        self._setup_db()
-        
-    def _open_connection(self, create_db=True):
-        try:
-            connection = db_connect(self.dbname, allow_uri=True)
-            self.cursor = connection.cursor()
-            self.cursor.autocommit(True)
-        except:
-            if not create_db:
-                raise
-            self._create_database()
-            return self._open_connection(create_db=False)
-
-    @ensure_cursor
-    def _setup_db(self):
-        self.cursor.execute("""
-            CREATE TABLE IF NOT EXISTS sessions (
-                sid varchar PRIMARY KEY,
-                write_date timestamp without time zone NOT NULL,
-                payload text NOT NULL
-            );
-        """)
-    
-    @ensure_cursor
-    def save(self, session):
-        self.cursor.execute("""
-            INSERT INTO sessions (sid, write_date, payload)
-            VALUES (%(sid)s, now() at time zone 'UTC', %(payload)s)
-            ON CONFLICT (sid)
-            DO UPDATE SET payload = %(payload)s, write_date = now() at time zone 'UTC';
-        """, dict(sid=session.sid, payload=json.dumps(dict(session))))
-        
-    @ensure_cursor
-    def delete(self, session):
-        self.cursor.execute("DELETE FROM sessions WHERE sid=%s;", [session.sid])
-
-    @ensure_cursor
-    def get(self, sid):
-        if not self.is_valid_key(sid):
-            return self.new()
-        self.cursor.execute("""
-            SELECT payload, write_date 
-            FROM sessions WHERE sid=%s;
-        """, [sid])
-        try:
-            payload, write_date = self.cursor.fetchone()
-            if write_date.date() != datetime.today().date():
-                self.cursor.execute("""
-                    UPDATE sessions 
-                    SET write_date = now() at time zone 'UTC' 
-                    WHERE sid=%s;
-                """, [sid])
-            return self.session_class(json.loads(payload), sid, False)
-        except Exception:
-            return self.session_class({}, sid, False)
-    
-    @ensure_cursor
-    def list(self):
-        self.cursor.execute("SELECT sid FROM sessions;")
-        return [record[0] for record in self.cursor.fetchall()]
-    
-    @ensure_cursor
-    def clean(self):
-        self.cursor.execute("""
-            DELETE FROM sessions 
-            WHERE now() at time zone 'UTC' - write_date > '7 days';
+###################################################################################
+#
+#    Copyright (C) 2017 MuK IT GmbH
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+###################################################################################
+
+import json
+import logging
+import psycopg2
+import functools
+
+from contextlib import closing
+from datetime import datetime, date
+
+from werkzeug.contrib.sessions import SessionStore
+
+from odoo.sql_db import db_connect
+from odoo.tools import config
+
+_logger = logging.getLogger(__name__)
+
+def ensure_cursor(func):
+    @functools.wraps(func)
+    def wrapper(self, *args, **kwargs):
+        for attempts in range(1, 6):
+            try:
+                return func(self, *args, **kwargs)
+            except psycopg2.InterfaceError as error:
+                _logger.info("SessionStore connection failed! (%s/5)" % attempts)
+                if attempts < 5:
+                    self._open_connection()
+                else:
+                    raise error
+    return wrapper
+
+class PostgresSessionStore(SessionStore):
+    
+    def __init__(self, *args, **kwargs):
+        super(PostgresSessionStore, self).__init__(*args, **kwargs)
+        self.dbname = config.get('session_store_dbname', 'session_store')
+        self._open_connection()
+        self._setup_db()
+    
+    def _create_database(self):
+        with closing(db_connect("postgres").cursor()) as cursor:
+            cursor.autocommit(True)
+            cursor.execute("""
+                CREATE DATABASE {dbname} 
+                ENCODING 'unicode'
+                TEMPLATE 'template0';
+            """.format(dbname=self.dbname))
+        self._setup_db()
+        
+    def _open_connection(self, create_db=True):
+        try:
+            connection = db_connect(self.dbname, allow_uri=True)
+            self.cursor = connection.cursor()
+            self.cursor.autocommit(True)
+        except:
+            if not create_db:
+                raise
+            self._create_database()
+            return self._open_connection(create_db=False)
+    
+    def __del__(self):
+        self.cursor.close()
+
+    @ensure_cursor
+    def _setup_db(self):
+        self.cursor.execute("""
+            CREATE TABLE IF NOT EXISTS sessions (
+                sid varchar PRIMARY KEY,
+                write_date timestamp without time zone NOT NULL,
+                payload text NOT NULL
+            );
+        """)
+    
+    @ensure_cursor
+    def save(self, session):
+        self.cursor.execute("""
+            INSERT INTO sessions (sid, write_date, payload)
+            VALUES (%(sid)s, now() at time zone 'UTC', %(payload)s)
+            ON CONFLICT (sid)
+            DO UPDATE SET payload = %(payload)s, write_date = now() at time zone 'UTC';
+        """, dict(sid=session.sid, payload=json.dumps(dict(session))))
+        
+    @ensure_cursor
+    def delete(self, session):
+        self.cursor.execute("DELETE FROM sessions WHERE sid=%s;", [session.sid])
+
+    @ensure_cursor
+    def get(self, sid):
+        if not self.is_valid_key(sid):
+            return self.new()
+        self.cursor.execute("""
+            SELECT payload, write_date 
+            FROM sessions WHERE sid=%s;
+        """, [sid])
+        try:
+            payload, write_date = self.cursor.fetchone()
+            if write_date.date() != datetime.today().date():
+                self.cursor.execute("""
+                    UPDATE sessions 
+                    SET write_date = now() at time zone 'UTC' 
+                    WHERE sid=%s;
+                """, [sid])
+            return self.session_class(json.loads(payload), sid, False)
+        except Exception:
+            return self.session_class({}, sid, False)
+    
+    @ensure_cursor
+    def list(self):
+        self.cursor.execute("SELECT sid FROM sessions;")
+        return [record[0] for record in self.cursor.fetchall()]
+    
+    @ensure_cursor
+    def clean(self):
+        self.cursor.execute("""
+            DELETE FROM sessions 
+            WHERE now() at time zone 'UTC' - write_date > '7 days';
         """)
\ No newline at end of file