Index: Ringtoets/Common/src/Ringtoets.Common.Service/ValidationRules/VariationCoefficientNormalDistributionRule.cs
===================================================================
diff -u -r023a114d38e9194ffed5f9ee1ee01cc151d80fdb -ra25d8e273425a90e4a8fa870f5fb624f7684ef20
--- Ringtoets/Common/src/Ringtoets.Common.Service/ValidationRules/VariationCoefficientNormalDistributionRule.cs	(.../VariationCoefficientNormalDistributionRule.cs)	(revision 023a114d38e9194ffed5f9ee1ee01cc151d80fdb)
+++ Ringtoets/Common/src/Ringtoets.Common.Service/ValidationRules/VariationCoefficientNormalDistributionRule.cs	(.../VariationCoefficientNormalDistributionRule.cs)	(revision a25d8e273425a90e4a8fa870f5fb624f7684ef20)
@@ -56,8 +56,8 @@
 
             if (IsNotConcreteNumber(distribution.CoefficientOfVariation))
             {
-                yield return (string.Format(Resources.ProbabilistiDistributionValidationRule_CoefficientOfVariation_of_ParameterName_0_must_be_larger_or_equal_to_zero,
-                                            parameterName));
+                yield return string.Format(Resources.ProbabilistiDistributionValidationRule_CoefficientOfVariation_of_ParameterName_0_must_be_larger_or_equal_to_zero,
+                                           parameterName);
             }
         }
     }