Index: Ringtoets/Common/test/Ringtoets.Common.Service.Test/ValidationRules/NumericInputRuleTest.cs
===================================================================
diff -u -r6279011a954055d718ba3acf1144fc0da8923bf7 -r1b4947dcf5b16e58c110a6981a9365453f69a038
--- Ringtoets/Common/test/Ringtoets.Common.Service.Test/ValidationRules/NumericInputRuleTest.cs	(.../NumericInputRuleTest.cs)	(revision 6279011a954055d718ba3acf1144fc0da8923bf7)
+++ Ringtoets/Common/test/Ringtoets.Common.Service.Test/ValidationRules/NumericInputRuleTest.cs	(.../NumericInputRuleTest.cs)	(revision 1b4947dcf5b16e58c110a6981a9365453f69a038)
@@ -60,7 +60,7 @@
 
             // Assert
             Assert.AreEqual(1, validationMessages.Length);
-            var expectedMessage = string.Format("Er is geen concreet getal ingevoerd voor '{0}'.", paramName);
+            var expectedMessage = string.Format("De waarde voor '{0}' moet een concreet getal zijn.", paramName);
             StringAssert.StartsWith(expectedMessage, validationMessages[0]);
         }
     }