Index: Ringtoets/WaveImpactAsphaltCover/test/Ringtoets.WaveImpactAsphaltCover.Service.Test/WaveImpactAsphaltCoverWaveConditionsCalculationActivityTest.cs
===================================================================
diff -u -re2dbd70747659819d97614b9a73733babaa7b106 -rdd84b844a388b0dc3f721bd40674c4ed513b3231
--- Ringtoets/WaveImpactAsphaltCover/test/Ringtoets.WaveImpactAsphaltCover.Service.Test/WaveImpactAsphaltCoverWaveConditionsCalculationActivityTest.cs	(.../WaveImpactAsphaltCoverWaveConditionsCalculationActivityTest.cs)	(revision e2dbd70747659819d97614b9a73733babaa7b106)
+++ Ringtoets/WaveImpactAsphaltCover/test/Ringtoets.WaveImpactAsphaltCover.Service.Test/WaveImpactAsphaltCoverWaveConditionsCalculationActivityTest.cs	(.../WaveImpactAsphaltCoverWaveConditionsCalculationActivityTest.cs)	(revision dd84b844a388b0dc3f721bd40674c4ed513b3231)
@@ -49,7 +49,7 @@
             var activity = new WaveImpactAsphaltCoverWaveConditionsCalculationActivity(calculation, string.Empty, failureMechanism, assessmentSectionMock);
 
             // Assert
-            Assert.IsInstanceOf<HydraRingActivity<List<WaveConditionsOutput>>>(activity);
+            Assert.IsInstanceOf<HydraRingActivity<IEnumerable<WaveConditionsOutput>>>(activity);
             Assert.IsNull(activity.ProgressText);
             Assert.AreEqual(ActivityState.None, activity.State);
             Assert.AreEqual(calculation.Name, activity.Name);