Index: Ringtoets/Integration/src/Ringtoets.Integration.Data/Assembly/CombinedAssemblyFailureMechanismSectionFactory.cs
===================================================================
diff -u -r9345e890865181247dd6c0b8ecee8d79a30c433b -r5f1a25cd31abb3bc15f8f6aeaa5ee6bfa2970bd7
--- Ringtoets/Integration/src/Ringtoets.Integration.Data/Assembly/CombinedAssemblyFailureMechanismSectionFactory.cs	(.../CombinedAssemblyFailureMechanismSectionFactory.cs)	(revision 9345e890865181247dd6c0b8ecee8d79a30c433b)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Data/Assembly/CombinedAssemblyFailureMechanismSectionFactory.cs	(.../CombinedAssemblyFailureMechanismSectionFactory.cs)	(revision 5f1a25cd31abb3bc15f8f6aeaa5ee6bfa2970bd7)
@@ -143,6 +143,14 @@
                                .ToArray());
             }
 
+            GrassCoverSlipOffInwardsFailureMechanism grassCoverSlipOffInwardsFailureMechanism = assessmentSection.GrassCoverSlipOffInwards;
+            if (failureMechanisms.Contains(grassCoverSlipOffOutwardsFailureMechanism))
+            {
+                inputs.Add(CreateCombinedSections(grassCoverSlipOffInwardsFailureMechanism.SectionResults,
+                                                  assessmentSection, GrassCoverSlipOffInwardsAssemblyFunc)
+                               .ToArray());
+            }
+
             return inputs;
         }
 
@@ -254,6 +262,14 @@
             }
         }
 
+        private static Func<GrassCoverSlipOffInwardsFailureMechanismSectionResult, AssessmentSection, FailureMechanismSectionAssemblyCategoryGroup> GrassCoverSlipOffInwardsAssemblyFunc
+        {
+            get
+            {
+                return (sectionResult, assessmentSection) => GrassCoverSlipOffInwardsFailureMechanismAssemblyFactory.GetSectionAssemblyCategoryGroup(sectionResult);
+            }
+        }
+
         #endregion
     }
 }
\ No newline at end of file