diff --git a/quantum/plugins/nec/agent/nec_quantum_agent.py b/quantum/plugins/nec/agent/nec_quantum_agent.py
index 00f1dd687cb..ab34062ada4 100755
--- a/quantum/plugins/nec/agent/nec_quantum_agent.py
+++ b/quantum/plugins/nec/agent/nec_quantum_agent.py
@@ -23,7 +23,6 @@
 # @author: Akihiro MOTOKI
 
 import socket
-import sys
 import time
 
 import eventlet
@@ -242,8 +241,6 @@ def main():
     # Start everything.
     agent.daemon_loop()
 
-    sys.exit(0)
-
 
 if __name__ == "__main__":
     main()
diff --git a/quantum/tests/unit/nec/test_nec_agent.py b/quantum/tests/unit/nec/test_nec_agent.py
index 03694fb2016..a6d395f1ebb 100644
--- a/quantum/tests/unit/nec/test_nec_agent.py
+++ b/quantum/tests/unit/nec/test_nec_agent.py
@@ -290,12 +290,12 @@ class TestNecAgentMain(base.BaseTestCase):
         with contextlib.nested(
             mock.patch.object(nec_quantum_agent, 'NECQuantumAgent'),
             mock.patch('eventlet.monkey_patch'),
-            mock.patch('quantum.common.config'),
+            mock.patch.object(nec_quantum_agent, 'logging_config'),
             mock.patch.object(nec_quantum_agent, 'config')
         ) as (agent, eventlet, logging_config, cfg):
-            cfg.CONF.ovs.integration_bridge = 'br-int-x'
-            cfg.CONF.AGENT.root_helper = 'dummy-helper'
-            cfg.CONF.AGENT.polling_interval = 10
+            cfg.OVS.integration_bridge = 'br-int-x'
+            cfg.AGENT.root_helper = 'dummy-helper'
+            cfg.AGENT.polling_interval = 10
 
             nec_quantum_agent.main()