diff --git a/src/calculation_time_constrains/service.py b/src/calculation_time_constrains/service.py
index b77c3a7..01c6930 100644
--- a/src/calculation_time_constrains/service.py
+++ b/src/calculation_time_constrains/service.py
@@ -827,7 +827,7 @@ async def get_calculation_result(db_session: DbSession, calculation_id: str, tok
         for month_index in range(data_num):
             month_result = {
                 "overhaul_cost": 0.0,
-                "corrective_cost": cumulative_loss_money,
+                "corrective_cost": cumulative_loss_money[month_index],
                 "procurement_cost": 0.0,
                 "num_failures": 0.0,
                 "day": month_index + 1,