diff --git a/quantum/agent/common/config.py b/quantum/agent/common/config.py
index 691ff1ecd4..05a5f01bc9 100644
--- a/quantum/agent/common/config.py
+++ b/quantum/agent/common/config.py
@@ -45,16 +45,18 @@ def get_log_args(conf, log_file_name):
         cmd_args.append('--verbose')
     if (conf.log_dir or conf.log_file):
         cmd_args.append('--log-file=%s' % log_file_name)
-    log_dir = None
-    if conf.log_dir and conf.log_file:
-        log_dir = os.path.dirname(
-            os.path.join(conf.log_dir, conf.log_file))
-    elif conf.log_dir:
-        log_dir = conf.log_dir
-    elif conf.log_file:
-        log_dir = os.path.dirname(conf.log_file)
-    if log_dir:
-        cmd_args.append('--log-dir=%s' % log_dir)
+        log_dir = None
+        if conf.log_dir and conf.log_file:
+            log_dir = os.path.dirname(
+                os.path.join(conf.log_dir, conf.log_file))
+        elif conf.log_dir:
+            log_dir = conf.log_dir
+        elif conf.log_file:
+            log_dir = os.path.dirname(conf.log_file)
+        if log_dir:
+            cmd_args.append('--log-dir=%s' % log_dir)
+    else:
+        cmd_args.append('--use-syslog')
     return cmd_args
 
 
diff --git a/quantum/tests/unit/test_dhcp_agent.py b/quantum/tests/unit/test_dhcp_agent.py
index 92be06c787..cf31483584 100644
--- a/quantum/tests/unit/test_dhcp_agent.py
+++ b/quantum/tests/unit/test_dhcp_agent.py
@@ -362,7 +362,7 @@ class TestLogArgs(base.BaseTestCase):
                      'log_dir': None,
                      'log_file': None}
         conf = dhcp_agent.DictModel(conf_dict)
-        expected_args = ['--debug']
+        expected_args = ['--debug', '--use-syslog']
         args = config.get_log_args(conf, 'log_file_name')
         self.assertEqual(expected_args, args)