diff --git a/openerp/addons/base/ir/ir_cron.py b/openerp/addons/base/ir/ir_cron.py
index eaeecdbeb35..0131a3cae1c 100644
--- a/openerp/addons/base/ir/ir_cron.py
+++ b/openerp/addons/base/ir/ir_cron.py
@@ -197,20 +197,20 @@ class ir_cron(osv.osv):
         """
         db = openerp.sql_db.db_connect(db_name)
         threading.current_thread().dbname = db_name
-        cr = db.cursor()
         jobs = []
         try:
-            # Make sure the database we poll has the same version as the code of base
-            cr.execute("SELECT 1 FROM ir_module_module WHERE name=%s AND latest_version=%s", ('base', BASE_VERSION))
-            if cr.fetchone():
-                # Careful to compare timestamps with 'UTC' - everything is UTC as of v6.1.
-                cr.execute("""SELECT * FROM ir_cron
-                              WHERE numbercall != 0
-                                  AND active AND nextcall <= (now() at time zone 'UTC')
-                              ORDER BY priority""")
-                jobs = cr.dictfetchall()
-            else:
-                _logger.warning('Skipping database %s as its base version is not %s.', db_name, BASE_VERSION)
+            with db.cursor() as cr:
+                # Make sure the database we poll has the same version as the code of base
+                cr.execute("SELECT 1 FROM ir_module_module WHERE name=%s AND latest_version=%s", ('base', BASE_VERSION))
+                if cr.fetchone():
+                    # Careful to compare timestamps with 'UTC' - everything is UTC as of v6.1.
+                    cr.execute("""SELECT * FROM ir_cron
+                                  WHERE numbercall != 0
+                                      AND active AND nextcall <= (now() at time zone 'UTC')
+                                  ORDER BY priority""")
+                    jobs = cr.dictfetchall()
+                else:
+                    _logger.warning('Skipping database %s as its base version is not %s.', db_name, BASE_VERSION)
         except psycopg2.ProgrammingError, e:
             if e.pgcode == '42P01':
                 # Class 42 — Syntax Error or Access Rule Violation; 42P01: undefined_table
@@ -220,8 +220,6 @@ class ir_cron(osv.osv):
                 raise
         except Exception:
             _logger.warning('Exception in cron:', exc_info=True)
-        finally:
-            cr.close()
 
         for job in jobs:
             lock_cr = db.cursor()