Index: trunk/src/Deltares.DeltaModel/WindHydraulicBoundary.cs
===================================================================
diff -u -r7 -r111
--- trunk/src/Deltares.DeltaModel/WindHydraulicBoundary.cs	(.../WindHydraulicBoundary.cs)	(revision 7)
+++ trunk/src/Deltares.DeltaModel/WindHydraulicBoundary.cs	(.../WindHydraulicBoundary.cs)	(revision 111)
@@ -9,6 +9,7 @@
 using Deltares.Standard.Language;
 using Deltares.Standard.Reflection;
 using Deltares.Standard.Units;
+using Deltares.Standard.Validation;
 
 namespace Deltares.DeltaModel
 {