diff --git a/backend/app/routers/objects.py b/backend/app/routers/objects.py
index f2f264c..91f268a 100644
--- a/backend/app/routers/objects.py
+++ b/backend/app/routers/objects.py
@@ -264,7 +264,13 @@ async def _run_discovery_background(obj_id: int, task_id: str) -> None:
         async with AsyncSessionLocal() as session:
             async with session.begin():
                 result_row = await session.execute(
-                    select(Object).options(selectinload(Object.tags)).where(Object.id == obj_id)
+                    select(Object)
+                    .options(
+                        selectinload(Object.tags),
+                        selectinload(Object.ssh_credentials),
+                        selectinload(Object.category_credentials),
+                    )
+                    .where(Object.id == obj_id)
                 )
                 obj = result_row.scalar_one_or_none()
                 if obj is None: