Index: Ringtoets/Piping/src/Ringtoets.Piping.Data/DerivedPipingInput.cs
===================================================================
diff -u -rd6fe8399e8398224cf1bda9259052232d85b85a4 -raa49537188229065df91b1a931f088c32115702a
--- Ringtoets/Piping/src/Ringtoets.Piping.Data/DerivedPipingInput.cs	(.../DerivedPipingInput.cs)	(revision d6fe8399e8398224cf1bda9259052232d85b85a4)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Data/DerivedPipingInput.cs	(.../DerivedPipingInput.cs)	(revision aa49537188229065df91b1a931f088c32115702a)
@@ -507,7 +507,7 @@
             }
             catch (Exception e)
             {
-                if (e is RingtoetsPipingSurfaceLineException || e is InvalidOperationException || e is ArgumentException)
+                if (e is PipingSurfaceLineException || e is InvalidOperationException || e is ArgumentException)
                 {
                     return double.NaN;
                 }
@@ -524,7 +524,7 @@
             }
             catch (Exception e)
             {
-                if (e is RingtoetsPipingSurfaceLineException || e is InvalidOperationException || e is ArgumentException)
+                if (e is PipingSurfaceLineException || e is InvalidOperationException || e is ArgumentException)
                 {
                     return double.NaN;
                 }