diff --git a/tackerclient/tacker/v1_0/nfvo/vnffg.py b/tackerclient/tacker/v1_0/nfvo/vnffg.py
index 355d1063..7c3a943f 100644
--- a/tackerclient/tacker/v1_0/nfvo/vnffg.py
+++ b/tackerclient/tacker/v1_0/nfvo/vnffg.py
@@ -170,7 +170,9 @@ class UpdateVNFFG(tackerV10.UpdateCommand):
             help=_('List of logical VNFD name to VNF instance name mapping.  '
                    'Example: VNF1:my_vnf1,VNF2:my_vnf2'))
         parser.add_argument(
-            '--symmetrical', metavar='{True,False}',
+            '--symmetrical',
+            action='store_true',
+            default=False,
             help=_('Should a reverse path be created for the NFP'))
 
     def args2body(self, parsed_args):
diff --git a/tackerclient/tests/unit/vm/test_cli10_vnffg.py b/tackerclient/tests/unit/vm/test_cli10_vnffg.py
index 8ce1a79b..fdc380ef 100644
--- a/tackerclient/tests/unit/vm/test_cli10_vnffg.py
+++ b/tackerclient/tests/unit/vm/test_cli10_vnffg.py
@@ -98,7 +98,8 @@ class CLITestV10VmVNFFGJSON(test_cli10.CLITestV10Base):
         value = 'new-value'
         self._test_update_resource(self._RESOURCE, cmd, my_id,
                                    [my_id, '--%s' % key, value],
-                                   {key: value}, get_client_called_count=2)
+                                   {'symmetrical': False, key: value},
+                                   get_client_called_count=2)
 
     def test_delete_vnffg(self):
         cmd = vnffg.DeleteVNFFG(test_cli10.MyApp(sys.stdout), None)