Index: Ringtoets/Integration/src/Ringtoets.Integration.Service/RingtoetsDataSynchronizationService.cs
===================================================================
diff -u -r5ee23018be55ff03a7851e54ca0a6682c521f952 -r1e6314ff2b8eb58d3630a7989e5aed022e13d35e
--- Ringtoets/Integration/src/Ringtoets.Integration.Service/RingtoetsDataSynchronizationService.cs	(.../RingtoetsDataSynchronizationService.cs)	(revision 5ee23018be55ff03a7851e54ca0a6682c521f952)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Service/RingtoetsDataSynchronizationService.cs	(.../RingtoetsDataSynchronizationService.cs)	(revision 1e6314ff2b8eb58d3630a7989e5aed022e13d35e)
@@ -41,6 +41,8 @@
 using Ringtoets.GrassCoverErosionOutwards.Service;
 using Ringtoets.HeightStructures.Data;
 using Ringtoets.HeightStructures.Service;
+using Ringtoets.MacroStabilityInwards.Data;
+using Ringtoets.MacroStabilityInwards.Service;
 using Ringtoets.Piping.Data;
 using Ringtoets.Piping.Service;
 using Ringtoets.Revetment.Data;
@@ -630,6 +632,12 @@
                 return PipingDataSynchronizationService.ClearReferenceLineDependentData(pipingFailureMechanism);
             }
 
+            var macroStabilityInwardsFailureMechanism = failureMechanism as MacroStabilityInwardsFailureMechanism;
+            if (macroStabilityInwardsFailureMechanism != null)
+            {
+                return MacroStabilityInwardsDataSynchronizationService.ClearReferenceLineDependentData(macroStabilityInwardsFailureMechanism);
+            }
+
             var grassCoverErosionInwardsFailureMechanism = failureMechanism as GrassCoverErosionInwardsFailureMechanism;
             if (grassCoverErosionInwardsFailureMechanism != null)
             {