diff --git a/tests/test_e2e_v27.py b/tests/test_e2e_v27.py
index 99efb0b..56a0230 100644
--- a/tests/test_e2e_v27.py
+++ b/tests/test_e2e_v27.py
@@ -657,7 +657,8 @@ class TestE8MailTab:
             type="task-assign",
         )
         # 先走状态链到 review，再标记 executed
-        bb = Blackboard(_db_path())
+        from src.api.mail_routes import _db_path as mail_db
+        bb = Blackboard(mail_db())
         for s in ["claimed", "working", "review"]:
             bb.update_task_status(mid, s, agent="zhangfei-dev")
         resp = client.patch(f"/api/mail/{mid}", json={"mark_executed": True})