Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsFailureMechanismAssemblyFactory.cs
===================================================================
diff -u -rc4ec477ac0277c6cff93e2ef0f2db32209da75ed -r4a82ee4eb940da3922b8e46a9203ddc5e4d6aa7f
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsFailureMechanismAssemblyFactory.cs	(.../MacroStabilityInwardsFailureMechanismAssemblyFactory.cs)	(revision c4ec477ac0277c6cff93e2ef0f2db32209da75ed)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Data/MacroStabilityInwardsFailureMechanismAssemblyFactory.cs	(.../MacroStabilityInwardsFailureMechanismAssemblyFactory.cs)	(revision 4a82ee4eb940da3922b8e46a9203ddc5e4d6aa7f)
@@ -1,4 +1,4 @@
-// Copyright (C) Stichting Deltares 2017. All rights reserved.
+// Copyright (C) Stichting Deltares 2018. All rights reserved.
 //
 // This file is part of Ringtoets.
 //
@@ -22,7 +22,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using Ringtoets.AssemblyTool.Data;
 using Ringtoets.AssemblyTool.KernelWrapper.Calculators;
 using Ringtoets.AssemblyTool.KernelWrapper.Calculators.Assembly;
 using Ringtoets.AssemblyTool.KernelWrapper.Kernels;
@@ -31,6 +30,7 @@
 using Ringtoets.Common.Data.Exceptions;
 using Ringtoets.Common.Data.Probability;
 using Ringtoets.Common.Primitives;
+using Riskeer.AssemblyTool.Data;
 using RingtoetsCommonDataResources = Ringtoets.Common.Data.Properties.Resources;
 
 namespace Ringtoets.MacroStabilityInwards.Data
@@ -395,7 +395,7 @@
                                                                              IAssessmentSection assessmentSection)
         {
             return AssemblyCategoriesInputFactory.CreateAssemblyCategoriesInput(failureMechanism.MacroStabilityInwardsProbabilityAssessmentInput.GetN(
-                                                                                    failureMechanism.MacroStabilityInwardsProbabilityAssessmentInput.SectionLength),
+                                                                                    assessmentSection.ReferenceLine.Length),
                                                                                 failureMechanism,
                                                                                 assessmentSection);
         }