Index: Ringtoets/Piping/src/Ringtoets.Piping.Data/SemiProbabilisticPipingInput.cs
===================================================================
diff -u -rde18e9d8a0324e9345f412eb6c1ffeed4f86f2fb -r2389ee6ea48d7014101ea90df5db340b44407c12
--- Ringtoets/Piping/src/Ringtoets.Piping.Data/SemiProbabilisticPipingInput.cs	(.../SemiProbabilisticPipingInput.cs)	(revision de18e9d8a0324e9345f412eb6c1ffeed4f86f2fb)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Data/SemiProbabilisticPipingInput.cs	(.../SemiProbabilisticPipingInput.cs)	(revision 2389ee6ea48d7014101ea90df5db340b44407c12)
@@ -45,7 +45,7 @@
             }
             set
             {
-                if (value <= 0 || value > 100)
+                if (value < 0 || value > 100)
                 {
                     throw new ArgumentOutOfRangeException("value", Resources.Contribution_Value_should_be_in_interval_0_100);
                 }