Index: Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/PipingInputTest.cs
===================================================================
diff -u -r2a7be595bf1251849a3c5f3be000f0e40f8fa874 -rbbfd376aee76613b471f70d2b1214d7e7b08fb1f
--- Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/PipingInputTest.cs	(.../PipingInputTest.cs)	(revision 2a7be595bf1251849a3c5f3be000f0e40f8fa874)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/PipingInputTest.cs	(.../PipingInputTest.cs)	(revision bbfd376aee76613b471f70d2b1214d7e7b08fb1f)
@@ -32,7 +32,7 @@
             Assert.AreEqual(1, inputParameters.DampingFactorExit.Mean);
             Assert.AreEqual(defaultLogNormalStandardDev, inputParameters.DampingFactorExit.StandardDeviation);
             Assert.IsInstanceOf<LognormalDistribution>(inputParameters.ThicknessCoverageLayer);
-            Assert.AreEqual(defaultLogNormalMean, inputParameters.ThicknessCoverageLayer.Mean);
+            Assert.IsNaN(inputParameters.ThicknessCoverageLayer.Mean);
             Assert.AreEqual(defaultLogNormalStandardDev, inputParameters.ThicknessCoverageLayer.StandardDeviation);
             Assert.IsInstanceOf<LognormalDistribution>(inputParameters.SeepageLength);
             Assert.AreEqual(defaultLogNormalMean, inputParameters.SeepageLength.Mean);