diff --git a/odoo/addons/base/models/ir_cron.py b/odoo/addons/base/models/ir_cron.py
index 8e88d1e852e..ac8b57365ea 100644
--- a/odoo/addons/base/models/ir_cron.py
+++ b/odoo/addons/base/models/ir_cron.py
@@ -102,7 +102,9 @@ class ir_cron(models.Model):
                     if not job:
                         break
                     _logger.debug("job %s acquired", job['id'])
-                    cls._process_job(db, cron_cr, job)
+                    # take into account overridings of _process_job() on that database
+                    registry = odoo.registry(db_name)
+                    registry[cls._name]._process_job(db, cron_cr, job)
                     _logger.debug("job %s updated and released", job['id'])
 
         except BadVersion: