Index: Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Data/Output/IllustrationPoints/FaultTreeIllustrationPoint.cs
===================================================================
diff -u -r2c00fea093af45947307620c4203188ceb872951 -rf9a4756925eb517d1a95079428b9a2011c525733
--- Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Data/Output/IllustrationPoints/FaultTreeIllustrationPoint.cs	(.../FaultTreeIllustrationPoint.cs)	(revision 2c00fea093af45947307620c4203188ceb872951)
+++ Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Data/Output/IllustrationPoints/FaultTreeIllustrationPoint.cs	(.../FaultTreeIllustrationPoint.cs)	(revision f9a4756925eb517d1a95079428b9a2011c525733)
@@ -47,6 +47,10 @@
             {
                 throw new ArgumentNullException(nameof(name));
             }
+            if (stochasts == null)
+            {
+                throw new ArgumentNullException(nameof(stochasts));
+            }
 
             Beta = beta;
             CombinationType = combinationType;