Index: Ringtoets/Common/test/Ringtoets.Common.Service.Test/DesignWaterLevelCalculationServiceTest.cs
===================================================================
diff -u -r4041baf0e78465709f1b12ef94f9ac613a569380 -ra8bfedc443289dd37ebd3c2304d4c4add4ef7d58
--- Ringtoets/Common/test/Ringtoets.Common.Service.Test/DesignWaterLevelCalculationServiceTest.cs	(.../DesignWaterLevelCalculationServiceTest.cs)	(revision 4041baf0e78465709f1b12ef94f9ac613a569380)
+++ Ringtoets/Common/test/Ringtoets.Common.Service.Test/DesignWaterLevelCalculationServiceTest.cs	(.../DesignWaterLevelCalculationServiceTest.cs)	(revision a8bfedc443289dd37ebd3c2304d4c4add4ef7d58)
@@ -293,7 +293,7 @@
             using (new HydraRingCalculatorFactoryConfig())
             {
                 var calculator = ((TestHydraRingCalculatorFactory) HydraRingCalculatorFactory.Instance).DesignWaterLevelCalculator;
-                calculator.LastErrorContent = "An error occured";
+                calculator.LastErrorContent = "An error occurred";
                 calculator.EndInFailure = true;
 
                 var exceptionThrown = false;
@@ -413,7 +413,7 @@
             {
                 var calculator = ((TestHydraRingCalculatorFactory) HydraRingCalculatorFactory.Instance).DesignWaterLevelCalculator;
                 calculator.EndInFailure = false;
-                calculator.LastErrorContent = "An error occured";
+                calculator.LastErrorContent = "An error occurred";
 
                 var exceptionThrown = false;
                 var exceptionMessage = string.Empty;