Index: Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Service.Test/HeightStructuresCalculationServiceTest.cs
===================================================================
diff -u -r6d4085c478883a718c7967c3d773619074c726db -ra8bfedc443289dd37ebd3c2304d4c4add4ef7d58
--- Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Service.Test/HeightStructuresCalculationServiceTest.cs	(.../HeightStructuresCalculationServiceTest.cs)	(revision 6d4085c478883a718c7967c3d773619074c726db)
+++ Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Service.Test/HeightStructuresCalculationServiceTest.cs	(.../HeightStructuresCalculationServiceTest.cs)	(revision a8bfedc443289dd37ebd3c2304d4c4add4ef7d58)
@@ -828,7 +828,7 @@
             using (new HydraRingCalculatorFactoryConfig())
             {
                 var calculator = ((TestHydraRingCalculatorFactory) HydraRingCalculatorFactory.Instance).StructuresOvertoppingCalculator;
-                calculator.LastErrorContent = "An error occured";
+                calculator.LastErrorContent = "An error occurred";
                 calculator.EndInFailure = true;
 
                 var exceptionThrown = false;
@@ -954,7 +954,7 @@
             {
                 var calculator = ((TestHydraRingCalculatorFactory) HydraRingCalculatorFactory.Instance).StructuresOvertoppingCalculator;
                 calculator.EndInFailure = false;
-                calculator.LastErrorContent = "An error occured";
+                calculator.LastErrorContent = "An error occurred";
 
                 var exceptionThrown = false;
                 var exceptionMessage = string.Empty;