Index: Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Forms/GrassCoverErosionOutwardsWaveConditionsCalculationHelper.cs
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diff -u -rf765cbda8002f3db4b7855ba9933899f7ebcf820 -r9e6869de553715aefe4752478334c3a6a3f83340
--- Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Forms/GrassCoverErosionOutwardsWaveConditionsCalculationHelper.cs	(.../GrassCoverErosionOutwardsWaveConditionsCalculationHelper.cs)	(revision f765cbda8002f3db4b7855ba9933899f7ebcf820)
+++ Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Forms/GrassCoverErosionOutwardsWaveConditionsCalculationHelper.cs	(.../GrassCoverErosionOutwardsWaveConditionsCalculationHelper.cs)	(revision 9e6869de553715aefe4752478334c3a6a3f83340)
@@ -42,7 +42,7 @@
         /// <param name="calculations">The list to update.</param>
         /// <exception cref="ArgumentNullException">Thrown when any input parameter is <c>null</c>.</exception>
         public static void AddCalculationsFromLocations(IEnumerable<HydraulicBoundaryLocation> locations,
-                                                        IList<ICalculationBase> calculations)
+                                                        List<ICalculationBase> calculations)
         {
             if (locations == null)
             {