diff --git a/backend/tests/test_profile_duplicate_names.py b/backend/tests/test_profile_duplicate_names.py
index 1a9b5672..a3a0a45a 100644
--- a/backend/tests/test_profile_duplicate_names.py
+++ b/backend/tests/test_profile_duplicate_names.py
@@ -12,7 +12,7 @@ from pathlib import Path
 from sqlalchemy import create_engine
 from sqlalchemy.orm import sessionmaker
 
-from backend.database import Base, VoiceProfile as DBVoiceProfile
+from backend.database import Base
 from backend.models import VoiceProfileCreate
 from backend.services.profiles import create_profile, update_profile
 
@@ -33,8 +33,11 @@ def test_db():
 
     yield db
 
-    # Cleanup
+    # Cleanup. The engine must be disposed as well as the session closed —
+    # on Windows the pooled connection keeps the .db file open and rmtree
+    # fails with WinError 32.
     db.close()
+    engine.dispose()
     shutil.rmtree(temp_dir)