diff --git a/src/overhaul_activity/service.py b/src/overhaul_activity/service.py
index 31c7a04..088d7bc 100644
--- a/src/overhaul_activity/service.py
+++ b/src/overhaul_activity/service.py
@@ -137,7 +137,7 @@ async def get_all(
     return equipments
 
 async def get_standard_scope_by_session_id(*, db_session: DbSession, overhaul_session_id: UUID, collector_db: CollectorDbSession):
-    overhaul = await get_session(db_session=db_session, overhaul_session_id=calculation.overhaul_session_id)
+    overhaul = await get_session(db_session=db_session, overhaul_session_id=overhaul_session_id)
     prev_oh_scope = await get_prev_oh(db_session=db_session, overhaul_session=overhaul)
 
     query = (