diff --git a/tests/model_loader/test_load_mtp.py b/tests/model_loader/test_load_mtp.py
index 415cb4699..59438166f 100644
--- a/tests/model_loader/test_load_mtp.py
+++ b/tests/model_loader/test_load_mtp.py
@@ -16,6 +16,7 @@
 
 import sys
 import unittest
+from pathlib import Path
 from unittest.mock import Mock
 
 import numpy as np
@@ -25,7 +26,8 @@ import paddle.distributed.fleet as fleet
 from fastdeploy.model_executor.layers.embeddings import VocabParallelEmbedding
 from fastdeploy.model_executor.models.ernie4_5_mtp import Ernie4_5_MTPForCausalLM
 
-sys.path.append("../")
+ROOT = Path(__file__).resolve().parents[2]
+sys.path.insert(0, str(ROOT))
 from tests.utils import get_default_test_fd_config
 
 strategy = fleet.DistributedStrategy()