diff --git a/neutron/db/l3_db.py b/neutron/db/l3_db.py
index 52a491f4e..c8f26b5b2 100644
--- a/neutron/db/l3_db.py
+++ b/neutron/db/l3_db.py
@@ -366,7 +366,7 @@ class L3_NAT_db_mixin(l3.RouterPluginBase):
                             notifier_api.publisher_id('network'),
                             'router.interface.create',
                             notifier_api.CONF.default_notification_level,
-                            {'router.interface': info})
+                            {'router_interface': info})
         return info
 
     def _confirm_router_interface_not_in_use(self, context, router_id,
@@ -440,7 +440,7 @@ class L3_NAT_db_mixin(l3.RouterPluginBase):
                             notifier_api.publisher_id('network'),
                             'router.interface.delete',
                             notifier_api.CONF.default_notification_level,
-                            {'router.interface': info})
+                            {'router_interface': info})
         return info
 
     def _get_floatingip(self, context, id):
diff --git a/neutron/tests/unit/test_l3_plugin.py b/neutron/tests/unit/test_l3_plugin.py
index 05aa3220e..7e75c7c8a 100644
--- a/neutron/tests/unit/test_l3_plugin.py
+++ b/neutron/tests/unit/test_l3_plugin.py
@@ -640,7 +640,7 @@ class L3NatTestCaseBase(L3NatTestCaseMixin):
 
                 for n in test_notifier.NOTIFICATIONS:
                     if n['event_type'].startswith('router.interface.'):
-                        payload = n['payload']['router.interface']
+                        payload = n['payload']['router_interface']
                         self.assertIn('id', payload)
                         self.assertEqual(payload['id'], r['router']['id'])
                         self.assertIn('tenant_id', payload)