Index: Ringtoets/Piping/src/Ringtoets.Piping.IO/SurfaceLines/CharacteristicPointsCsvReader.cs
===================================================================
diff -u -rad11d25e651c47162ecf08d11a05d40bba0bebca -r724c2ade6c72ae9d53a12540bdff3a6ece79c34d
--- Ringtoets/Piping/src/Ringtoets.Piping.IO/SurfaceLines/CharacteristicPointsCsvReader.cs	(.../CharacteristicPointsCsvReader.cs)	(revision ad11d25e651c47162ecf08d11a05d40bba0bebca)
+++ Ringtoets/Piping/src/Ringtoets.Piping.IO/SurfaceLines/CharacteristicPointsCsvReader.cs	(.../CharacteristicPointsCsvReader.cs)	(revision 724c2ade6c72ae9d53a12540bdff3a6ece79c34d)
@@ -329,7 +329,7 @@
             string line;
             while ((line = ReadLineAndHandleIOExceptions(reader, lineNumberForMessage)) != null)
             {
-                if (!String.IsNullOrWhiteSpace(line))
+                if (!string.IsNullOrWhiteSpace(line))
                 {
                     count++;
                 }