diff --git a/src/calculation_time_constrains/service.py b/src/calculation_time_constrains/service.py
index 5353a54..32a7510 100644
--- a/src/calculation_time_constrains/service.py
+++ b/src/calculation_time_constrains/service.py
@@ -1188,8 +1188,8 @@ class OptimumCostModel:
                 predicted_costs = self._calculate_costs_vectorized(
                     reliabilities=reliabilities,
                     preventive_cost=preventive_cost_per_equipment,
-                    failure_replacement_cost=cost_per_failure
-                    failute_rate=failure_rate
+                    failure_replacement_cost=cost_per_failure,
+                    failure_rate=failure_rate
                 )
 
                 if not predicted_costs: