diff --git a/backend/tests/conftest.py b/backend/tests/conftest.py
index e84b64e0d..9e8a12668 100644
--- a/backend/tests/conftest.py
+++ b/backend/tests/conftest.py
@@ -81,12 +81,16 @@ async def test_engine():
         print_queue,
         printer,
         project,
+        project_bom,
         settings,
+        slot_preset,
         smart_plug,
         spool,
         spool_assignment,
         spool_catalog,
+        spool_k_profile,
         spool_usage_history,
+        spoolbuddy_device,
         user,
         user_email_pref,
         virtual_printer,