Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/Common/UpliftHelper.cs
===================================================================
diff -u -r6851 -r6856
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/Common/UpliftHelper.cs	(.../UpliftHelper.cs)	(revision 6851)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/Common/UpliftHelper.cs	(.../UpliftHelper.cs)	(revision 6856)
@@ -40,8 +40,8 @@
     /// <param name="upliftSituation">The uplift situation.</param>
     /// <param name="warningMessage">The warning message.</param>
     /// <returns>pl lines</returns>
-    public PlLines DeterminePlLinesForStability(DamKernelInput damKernelInput, bool useRiverLevelLow,
-                                                out UpliftSituation upliftSituation, out string warningMessage)
+    public static PlLines DeterminePlLinesForStability(DamKernelInput damKernelInput, bool useRiverLevelLow,
+                                                       out UpliftSituation upliftSituation, out string warningMessage)
     {
         double riverLevel = damKernelInput.RiverLevelHigh;
         double? riverLevelLow = null;