Index: Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Plugin/GrassCoverErosionOutwardsPlugin.cs
===================================================================
diff -u -r5b29dd531b618b6d3969e7cba9c95d31517290e4 -r218e7a0206204401ad7fe9d94ea3532dc456f33e
--- Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Plugin/GrassCoverErosionOutwardsPlugin.cs	(.../GrassCoverErosionOutwardsPlugin.cs)	(revision 5b29dd531b618b6d3969e7cba9c95d31517290e4)
+++ Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Plugin/GrassCoverErosionOutwardsPlugin.cs	(.../GrassCoverErosionOutwardsPlugin.cs)	(revision 218e7a0206204401ad7fe9d94ea3532dc456f33e)
@@ -33,6 +33,7 @@
 using Core.Common.Util;
 using Ringtoets.Common.Data.AssessmentSection;
 using Ringtoets.Common.Data.Calculation;
+using Ringtoets.Common.Data.Contribution;
 using Ringtoets.Common.Data.FailureMechanism;
 using Ringtoets.Common.Data.Hydraulics;
 using Ringtoets.Common.Forms;
@@ -765,18 +766,22 @@
 
                 if (dialog.SelectedItems.Any())
                 {
-                    GenerateGrassCoverErosionOutwardsWaveConditionsCalculations(dialog.SelectedItems, nodeData.WrappedData.Children);
+                    GenerateGrassCoverErosionOutwardsWaveConditionsCalculations(dialog.SelectedItems,
+                                                                                nodeData.WrappedData.Children,
+                                                                                nodeData.AssessmentSection.FailureMechanismContribution.NormativeNorm);
                     nodeData.NotifyObservers();
                 }
             }
         }
 
         private static void GenerateGrassCoverErosionOutwardsWaveConditionsCalculations(IEnumerable<HydraulicBoundaryLocation> hydraulicBoundaryLocations,
-                                                                                        List<ICalculationBase> calculationCollection)
+                                                                                        List<ICalculationBase> calculationCollection,
+                                                                                        NormType normType)
         {
             GrassCoverErosionOutwardsWaveConditionsCalculationHelper.AddCalculationsFromLocations(
                 hydraulicBoundaryLocations,
-                calculationCollection);
+                calculationCollection,
+                normType);
         }
 
         private static void AddWaveConditionsCalculation(GrassCoverErosionOutwardsWaveConditionsCalculationGroupContext nodeData)
@@ -787,7 +792,7 @@
                                                   RingtoetsCommonDataResources.Calculation_DefaultName,
                                                   c => c.Name)
             };
-            WaveConditionsInputHelper.SetCategoryType(calculation.InputParameters, 
+            WaveConditionsInputHelper.SetCategoryType(calculation.InputParameters,
                                                       nodeData.AssessmentSection.FailureMechanismContribution.NormativeNorm);
             nodeData.WrappedData.Children.Add(calculation);
             nodeData.WrappedData.NotifyObservers();