Index: trunk/src/MStab/IO/Classic/StressCurveReader.cs
===================================================================
diff -u -r7 -r111
--- trunk/src/MStab/IO/Classic/StressCurveReader.cs	(.../StressCurveReader.cs)	(revision 7)
+++ trunk/src/MStab/IO/Classic/StressCurveReader.cs	(.../StressCurveReader.cs)	(revision 111)
@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.IO;
 using Deltares.Geotechnics;
+using Deltares.Geotechnics.Soils;
 using Deltares.Standard.EventPublisher;
 
 namespace Deltares.MStab.IO.Classic