Index: Ringtoets/Piping/src/Ringtoets.Piping.Forms/NodePresenters/PipingFailureMechanismNodePresenter.cs
===================================================================
diff -u -r85af6861f16df8c5d57e3e39d0d2874e7bd16b8e -r074232b001ecb5ae110c0b95c05264d4372cbfb5
--- Ringtoets/Piping/src/Ringtoets.Piping.Forms/NodePresenters/PipingFailureMechanismNodePresenter.cs	(.../PipingFailureMechanismNodePresenter.cs)	(revision 85af6861f16df8c5d57e3e39d0d2874e7bd16b8e)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Forms/NodePresenters/PipingFailureMechanismNodePresenter.cs	(.../PipingFailureMechanismNodePresenter.cs)	(revision 074232b001ecb5ae110c0b95c05264d4372cbfb5)
@@ -6,6 +6,7 @@
 using System.Windows.Forms;
 using Core.Common.Base.Service;
 using Core.Common.Controls;
+using Core.Common.Controls.Swf.TreeViewControls;
 using Core.Common.Gui;
 using Core.Common.Gui.ContextMenu;
 using Ringtoets.Common.Forms.Helpers;