Index: Application/Ringtoets/src/Application.Ringtoets.Storage/Serializers/RingXmlSerializer.cs
===================================================================
diff -u -r9f936b0b29f490a024df02345df182133b1c041a -r1f04a4b4d98fc797240cd4fb8a099995b9557592
--- Application/Ringtoets/src/Application.Ringtoets.Storage/Serializers/RingXmlSerializer.cs	(.../RingXmlSerializer.cs)	(revision 9f936b0b29f490a024df02345df182133b1c041a)
+++ Application/Ringtoets/src/Application.Ringtoets.Storage/Serializers/RingXmlSerializer.cs	(.../RingXmlSerializer.cs)	(revision 1f04a4b4d98fc797240cd4fb8a099995b9557592)
@@ -23,6 +23,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using Ringtoets.MacroStabilityInwards.Data.SoilProfile;
+using Ringtoets.MacroStabilityInwards.Primitives;
 
 namespace Application.Ringtoets.Storage.Serializers
 {