Index: Ringtoets/Piping/test/Ringtoets.Piping.Forms.Test/PropertyClasses/PipingOutputPropertiesTest.cs
===================================================================
diff -u -ra950714ad9510756331d862aa35695fa0b2ed03b -r0c64d8a6c718c0aa67403a16c94dd0c10f862455
--- Ringtoets/Piping/test/Ringtoets.Piping.Forms.Test/PropertyClasses/PipingOutputPropertiesTest.cs	(.../PipingOutputPropertiesTest.cs)	(revision a950714ad9510756331d862aa35695fa0b2ed03b)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Forms.Test/PropertyClasses/PipingOutputPropertiesTest.cs	(.../PipingOutputPropertiesTest.cs)	(revision 0c64d8a6c718c0aa67403a16c94dd0c10f862455)
@@ -1,5 +1,7 @@
 using System;
 using Core.Common.Gui;
+using Core.Common.Gui.PropertyBag;
+
 using NUnit.Framework;
 
 using Ringtoets.Piping.Data;