diff --git a/neutron/service.py b/neutron/service.py
index 29d47ae2f41..f31f44c01c2 100644
--- a/neutron/service.py
+++ b/neutron/service.py
@@ -89,7 +89,7 @@ def serve_wsgi(cls):
             LOG.exception('Unrecoverable error: please check log '
                           'for details.')
 
-    registry.notify(resources.PROCESS, events.BEFORE_SPAWN, service)
+    registry.publish(resources.PROCESS, events.BEFORE_SPAWN, service)
     return service
 
 
@@ -262,7 +262,7 @@ def _start_workers(workers):
 def start_all_workers():
     workers = _get_rpc_workers() + _get_plugins_workers()
     launcher = _start_workers(workers)
-    registry.notify(resources.PROCESS, events.AFTER_SPAWN, None)
+    registry.publish(resources.PROCESS, events.AFTER_SPAWN, None)
     return launcher
 
 
diff --git a/neutron/tests/unit/test_service.py b/neutron/tests/unit/test_service.py
index fb700400b28..de5c3507baa 100644
--- a/neutron/tests/unit/test_service.py
+++ b/neutron/tests/unit/test_service.py
@@ -69,4 +69,4 @@ class TestRunWsgiApp(base.BaseTestCase):
         registry.subscribe(callback, resources.PROCESS, events.AFTER_SPAWN)
         service.start_all_workers()
         callback.assert_called_once_with(
-            resources.PROCESS, events.AFTER_SPAWN, mock.ANY)
+            resources.PROCESS, events.AFTER_SPAWN, mock.ANY, payload=None)