diff --git a/vmware_nsx/nsxlib/mh/lsn.py b/vmware_nsx/nsxlib/mh/lsn.py
index 8fb4e039e4..a5f6f3e84b 100644
--- a/vmware_nsx/nsxlib/mh/lsn.py
+++ b/vmware_nsx/nsxlib/mh/lsn.py
@@ -106,7 +106,7 @@ def lsn_port_create(cluster, lsn_id, port_data):
     return nsxlib.do_request(HTTP_POST,
                              nsxlib._build_uri_path(LSERVICESNODEPORT_RESOURCE,
                                                     parent_resource_id=lsn_id),
-                             jsonutils.dumps(port_obj),
+                             jsonutils.dumps(port_obj, sort_keys=True),
                              cluster=cluster)["uuid"]
 
 
diff --git a/vmware_nsx/tests/unit/nsxlib/mh/test_lsn.py b/vmware_nsx/tests/unit/nsxlib/mh/test_lsn.py
index ae87aa84fb..8b16b29ef6 100644
--- a/vmware_nsx/tests/unit/nsxlib/mh/test_lsn.py
+++ b/vmware_nsx/tests/unit/nsxlib/mh/test_lsn.py
@@ -157,7 +157,7 @@ class LSNTestCase(base.BaseTestCase):
         }
         self.mock_request.assert_called_once_with(
             "POST", "/ws.v1/lservices-node/%s/lport" % lsn_id,
-            jsonutils.dumps(port_obj), cluster=self.cluster)
+            jsonutils.dumps(port_obj, sort_keys=True), cluster=self.cluster)
 
     def test_lsn_port_delete(self):
         lsn_id = "foo_lsn_id"