diff --git a/source/ProcessManager.Orchestrations/Processes/BRS_023_027/V1/Mappers/CalculationTypeMapper.cs b/source/ProcessManager.Orchestrations/Processes/BRS_023_027/V1/Mappers/CalculationTypeMapper.cs
index 7e30d0a..d021eb7 100644
--- a/source/ProcessManager.Orchestrations/Processes/BRS_023_027/V1/Mappers/CalculationTypeMapper.cs
+++ b/source/ProcessManager.Orchestrations/Processes/BRS_023_027/V1/Mappers/CalculationTypeMapper.cs
@@ -51,7 +51,7 @@ public static string ToDeltaTableValue(CalculationTypes calculationType)
             _ => throw new ArgumentOutOfRangeException(
                 nameof(calculationType),
                 actualValue: calculationType,
-                "Value cannot be mapped to a string representation of a calculation type."),
+                "Value cannot be mapped to a string representation of a DeltaTableCalculation type."),
         };
     }
 }