diff --git a/package/tests/test_PartSeg/conftest.py b/package/tests/test_PartSeg/conftest.py
index f4d5db297..9cc322e1e 100644
--- a/package/tests/test_PartSeg/conftest.py
+++ b/package/tests/test_PartSeg/conftest.py
@@ -90,7 +90,7 @@ def start(self, time=None):
             else:
                 old_start(self)
 
-    def not_start(self):
+    def not_start(self, time=None):
         raise RuntimeError("Thread should not be used in test")
 
     monkeypatch.setattr(QTimer, "start", not_start)