Index: /issm/trunk-jpl/src/c/cores/masstransport_core.cpp
===================================================================
--- /issm/trunk-jpl/src/c/cores/masstransport_core.cpp	(revision 17334)
+++ /issm/trunk-jpl/src/c/cores/masstransport_core.cpp	(revision 17335)
@@ -62,5 +62,5 @@
 		if(VerboseSolution()) _printf0_("   call computational core\n");
 		solutionsequence_linear(femmodel);
-		if(meshtype!=Mesh2DhorizontalEnum){
+		if(meshtype==Mesh2DverticalEnum){
 			femmodel->parameters->SetParam(ThicknessEnum,InputToExtrudeEnum);
 			extrudefrombase_core(femmodel);