diff --git a/test/registered/unit/server_args/test_server_args.py b/test/registered/unit/server_args/test_server_args.py
index 79b85d49d..33d05e555 100644
--- a/test/registered/unit/server_args/test_server_args.py
+++ b/test/registered/unit/server_args/test_server_args.py
@@ -223,6 +223,7 @@ def test_megamoe_a2a_backend_parser_sets_ep_to_tp():
             ]
         )
         args = ServerArgs.from_cli_args(raw_args)
+        args._handle_a2a_moe()
         assert args.moe_a2a_backend == "megamoe"
         assert args.tp_size == 4
         assert args.ep_size == 4