Index: Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/StochasticSoilModelTest.cs
===================================================================
diff -u -r5e70f173b3839314912e086b6c1c784b975ee646 -rc1e57c344103b0219edc5bb853da2a0ca5c41877
--- Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/StochasticSoilModelTest.cs	(.../StochasticSoilModelTest.cs)	(revision 5e70f173b3839314912e086b6c1c784b975ee646)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/StochasticSoilModelTest.cs	(.../StochasticSoilModelTest.cs)	(revision c1e57c344103b0219edc5bb853da2a0ca5c41877)
@@ -20,6 +20,7 @@
 // All rights reserved.
 
 using System;
+using Core.Common.Base;
 using Core.Common.Base.Geometry;
 using NUnit.Framework;
 using Rhino.Mocks;
@@ -40,7 +41,7 @@
             StochasticSoilModel stochasticSoilModelSegment = new StochasticSoilModel(segmentSoilModelId, segmentSoilModelName, segmentName);
 
             // Assert
-            Assert.IsInstanceOf<StochasticSoilModel>(stochasticSoilModelSegment);
+            Assert.IsInstanceOf<Observable>(stochasticSoilModelSegment);
             Assert.AreEqual(segmentSoilModelId, stochasticSoilModelSegment.Id);
             Assert.AreEqual(segmentSoilModelName, stochasticSoilModelSegment.Name);
             Assert.AreEqual(segmentName, stochasticSoilModelSegment.SegmentName);