diff --git a/tests/unit/test_batch_download.py b/tests/unit/test_batch_download.py
index 345917875..58c669bce 100755
--- a/tests/unit/test_batch_download.py
+++ b/tests/unit/test_batch_download.py
@@ -7,7 +7,6 @@ and _download_video_to_file helper.
 from __future__ import annotations
 
 import io
-import sys
 import zipfile
 from pathlib import Path
 from unittest.mock import MagicMock, patch
@@ -245,19 +244,7 @@ def test_batch_download_single_video():
 
 
 def test_batch_download_session_closed():
-    """DB session is always closed (via finally block).
-
-    NOTE: Some prior tests in the full suite replace sys.modules['worker_app.db']
-    with a MagicMock, causing 'from worker_app.db import SessionLocal' to get a
-    mock. We ensure the real module is restored before testing.
-    """
-    # Restore real worker_app.db module if it was mocked by a prior test
-    import types
-    if not isinstance(sys.modules.get("worker_app.db"), types.ModuleType):
-        # Remove the mock and re-import the real module
-        sys.modules.pop("worker_app.db", None)
-        import worker_app.db  # noqa: F401 — re-import real module
-
+    """DB session is always closed (via finally block)."""
     videos = [_FakeVideo("v1", "v.mp4")]
 
     session = MagicMock()