Index: Ringtoets/Common/src/Ringtoets.Common.Service/ValidationRules/LogNormalDistributionRule.cs
===================================================================
diff -u -rcfe7c2c39dcb9e0a25af2908650c7191a733f4e2 -r7259f846cac0ed1569ee22d9788ca7c2f3ca6445
--- Ringtoets/Common/src/Ringtoets.Common.Service/ValidationRules/LogNormalDistributionRule.cs	(.../LogNormalDistributionRule.cs)	(revision cfe7c2c39dcb9e0a25af2908650c7191a733f4e2)
+++ Ringtoets/Common/src/Ringtoets.Common.Service/ValidationRules/LogNormalDistributionRule.cs	(.../LogNormalDistributionRule.cs)	(revision 7259f846cac0ed1569ee22d9788ca7c2f3ca6445)
@@ -48,14 +48,14 @@
         public override IEnumerable<string> Validate()
         {
             var validationResults = new List<string>();
-            
-            if (IsInValidNumber(distribution.Mean))
+
+            if (IsInvalidNumber(distribution.Mean))
             {
                 validationResults.Add(string.Format(RingtoetsCommonServiceResources.DistributionValidationService_ValidateDistribution_Mean_of_0_must_be_positive_value,
                                                    parameterName));
             }
 
-            if (IsInValidNumber(distribution.StandardDeviation))
+            if (IsInvalidNumber(distribution.StandardDeviation))
             {
                 validationResults.Add(string.Format(RingtoetsCommonServiceResources.DistributionValidationService_ValidateDistribution_StandardDeviation_of_ParameterName_0_must_be_larger_or_equal_to_zero,
                                                    parameterName));