diff --git a/tests/test_rfc2863.py b/tests/test_rfc2863.py
index ad68333ea..183e6ac52 100644
--- a/tests/test_rfc2863.py
+++ b/tests/test_rfc2863.py
@@ -20,7 +20,6 @@ def mock_get_sync_d_from_all_namespace(per_namespace_func, dbs):
             return [{'PortChannel999': [], 'PortChannel103': ['Ethernet120']}, # lag_name_if_name_map
                     {},
                     {1999: 'PortChannel999', 1103: 'PortChannel103'}, # oid_lag_name_map
-                    {},
                     {}]
 
         if per_namespace_func == sonic_ax_impl.mibs.init_sync_d_interface_tables: