Index: Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.IO/Configurations/ClosingStructuresCalculationConfigurationImporter.cs
===================================================================
diff -u -rb574376e8d2b485ff320504841723923c1e41331 -r4e27904f8aee7ae9723f57336764c585a3b9300d
--- Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.IO/Configurations/ClosingStructuresCalculationConfigurationImporter.cs	(.../ClosingStructuresCalculationConfigurationImporter.cs)	(revision b574376e8d2b485ff320504841723923c1e41331)
+++ Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.IO/Configurations/ClosingStructuresCalculationConfigurationImporter.cs	(.../ClosingStructuresCalculationConfigurationImporter.cs)	(revision 4e27904f8aee7ae9723f57336764c585a3b9300d)
@@ -203,9 +203,10 @@
 
         private bool ValidateStochasts(ClosingStructuresCalculationConfiguration configuration)
         {
-            if (configuration.DrainCoefficient?.StandardDeviation != null)
+            if (configuration.DrainCoefficient?.StandardDeviation != null
+                || configuration.DrainCoefficient?.VariationCoefficient != null)
             {
-                Log.LogCalculationConversionError(Resources.CalculationConfigurationImporter_ValidateStochasts_Cannot_define_StandardDeviation_for_DrainCoefficient,
+                Log.LogCalculationConversionError(Resources.CalculationConfigurationImporter_ValidateStochasts_Cannot_define_spread_for_DrainCoefficient,
                                                   configuration.Name);
                 return false;
             }