Index: Ringtoets/Common/test/Ringtoets.Common.Service.TestUtil.Test/TestDesignWaterLevelCalculationServiceTest.cs
===================================================================
diff -u -rc6176d50a690c3ff5ee1c4b2902dcabc2e270201 -r1e533850c7711172462df1e8f569b9f3ff950045
--- Ringtoets/Common/test/Ringtoets.Common.Service.TestUtil.Test/TestDesignWaterLevelCalculationServiceTest.cs	(.../TestDesignWaterLevelCalculationServiceTest.cs)	(revision c6176d50a690c3ff5ee1c4b2902dcabc2e270201)
+++ Ringtoets/Common/test/Ringtoets.Common.Service.TestUtil.Test/TestDesignWaterLevelCalculationServiceTest.cs	(.../TestDesignWaterLevelCalculationServiceTest.cs)	(revision 1e533850c7711172462df1e8f569b9f3ff950045)
@@ -19,7 +19,6 @@
 // Stichting Deltares and remain full property of Stichting Deltares at all times.
 // All rights reserved.
 
-using System;
 using Core.Common.Utils;
 using NUnit.Framework;
 using Rhino.Mocks;
@@ -39,7 +38,7 @@
             var service = new TestDesignWaterLevelCalculationService();
 
             // Call
-            bool validated = service.Validate(string.Empty, String.Empty);
+            bool validated = service.Validate(string.Empty, string.Empty);
 
             // Assert
             Assert.IsTrue(validated);