Index: Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Data.Test/GrassCoverErosionInwardsOutputTest.cs
===================================================================
diff -u -ra7250eadfcaa33555a923aac13f3ac00c0a12e1f -r07f3d67fe9512b3c8303ff09398b0a234900d546
--- Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Data.Test/GrassCoverErosionInwardsOutputTest.cs	(.../GrassCoverErosionInwardsOutputTest.cs)	(revision a7250eadfcaa33555a923aac13f3ac00c0a12e1f)
+++ Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Data.Test/GrassCoverErosionInwardsOutputTest.cs	(.../GrassCoverErosionInwardsOutputTest.cs)	(revision 07f3d67fe9512b3c8303ff09398b0a234900d546)
@@ -59,7 +59,7 @@
 
             // Assert
             Assert.IsInstanceOf<ICalculationOutput>(output);
-            Assert.IsInstanceOf<Observable>(output);
+            Assert.IsInstanceOf<CloneableObservable>(output);
 
             Assert.AreSame(overtoppingOutput, output.OvertoppingOutput);
             Assert.AreSame(dikeHeightOutput, output.DikeHeightOutput);