Index: Ringtoets/Piping/src/Ringtoets.Piping.Plugin/PipingGuiPlugin.cs
===================================================================
diff -u -rd36a95d2e88d98b7b92ff5d091abf711d1dd31d9 -r10779bb6a6db2d00f4627b2bc190e7e35e1fee3e
--- Ringtoets/Piping/src/Ringtoets.Piping.Plugin/PipingGuiPlugin.cs	(.../PipingGuiPlugin.cs)	(revision d36a95d2e88d98b7b92ff5d091abf711d1dd31d9)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Plugin/PipingGuiPlugin.cs	(.../PipingGuiPlugin.cs)	(revision 10779bb6a6db2d00f4627b2bc190e7e35e1fee3e)
@@ -36,6 +36,7 @@
 using Ringtoets.Piping.Forms.PresentationObjects;
 using Ringtoets.Piping.Forms.PropertyClasses;
 using Ringtoets.Piping.Forms.Views;
+using Ringtoets.Piping.Primitives;
 using Ringtoets.Piping.Service;
 using PipingDataResources = Ringtoets.Piping.Data.Properties.Resources;
 using RingtoetsCommonFormsResources = Ringtoets.Common.Forms.Properties.Resources;