Index: Ringtoets/Piping/src/Ringtoets.Piping.IO/SurfaceLines/PipingSurfaceLinesCsvReader.cs
===================================================================
diff -u -rfa7b82645e1beef3649d4498ad3e7ee8c3c32dad -r968645e02cdc2c21c899fa8099589c779138be54
--- Ringtoets/Piping/src/Ringtoets.Piping.IO/SurfaceLines/PipingSurfaceLinesCsvReader.cs	(.../PipingSurfaceLinesCsvReader.cs)	(revision fa7b82645e1beef3649d4498ad3e7ee8c3c32dad)
+++ Ringtoets/Piping/src/Ringtoets.Piping.IO/SurfaceLines/PipingSurfaceLinesCsvReader.cs	(.../PipingSurfaceLinesCsvReader.cs)	(revision 968645e02cdc2c21c899fa8099589c779138be54)
@@ -25,6 +25,7 @@
 using System.IO;
 using System.Linq;
 using Core.Common.Base.Geometry;
+using Core.Common.IO;
 using Core.Common.IO.Exceptions;
 using Core.Common.Utils;
 using Core.Common.Utils.Builders;