diff --git a/flagscale/serve/run_serve.py b/flagscale/serve/run_serve.py
index 40b75d42..89ad9372 100644
--- a/flagscale/serve/run_serve.py
+++ b/flagscale/serve/run_serve.py
@@ -6,8 +6,6 @@
 
 def main():
     config = parse_config().serve
-    project_path = config["root_path"]
-    sys.path.append(project_path)
     builder = Builder(config)
     builder.build_task()
     builder.run_router_task()
diff --git a/tests/unit_tests/serve/build_dag/serve/config.yaml b/tests/unit_tests/serve/build_dag/serve/config.yaml
index 5a129861..e23d008f 100644
--- a/tests/unit_tests/serve/build_dag/serve/config.yaml
+++ b/tests/unit_tests/serve/build_dag/serve/config.yaml
@@ -1,5 +1,3 @@
-root_path: tests/unit_tests/serve/build_dag                                                                                                                                             
-
 deploy:
   models:
     A: