Index: src/Common/DelftTools.Utils/Aop/EntityAttribute.cs
===================================================================
diff -u -r5fc71a385897af92ccb092f2f969b5709afab85a -r046989902e6c0c0f6f8cc821aaf097c377d7dccb
--- src/Common/DelftTools.Utils/Aop/EntityAttribute.cs	(.../EntityAttribute.cs)	(revision 5fc71a385897af92ccb092f2f969b5709afab85a)
+++ src/Common/DelftTools.Utils/Aop/EntityAttribute.cs	(.../EntityAttribute.cs)	(revision 046989902e6c0c0f6f8cc821aaf097c377d7dccb)
@@ -5,6 +5,7 @@
 using System.Linq;
 using System.Reflection;
 using System.Runtime.CompilerServices;
+using DelftTools.Utils.Aop.Markers;
 using DelftTools.Utils.Collections;
 using DelftTools.Utils.Collections.Generic;
 using PostSharp.Aspects;