Index: /issm/trunk-jpl/src/c/modules/ModelProcessorx/Enthalpy/CreateConstraintsEnthalpy.cpp
===================================================================
--- /issm/trunk-jpl/src/c/modules/ModelProcessorx/Enthalpy/CreateConstraintsEnthalpy.cpp	(revision 11269)
+++ /issm/trunk-jpl/src/c/modules/ModelProcessorx/Enthalpy/CreateConstraintsEnthalpy.cpp	(revision 11270)
@@ -55,7 +55,7 @@
 		if((iomodel->my_vertices[i])){
 
-			if ((int)spctemperature[2*i]){
+			if (!isnan(spctemperature[i])){
 
-				constraints->AddObject(new SpcStatic(iomodel->constraintcounter+count+1,iomodel->nodecounter+i+1,1,heatcapacity*(spctemperature[2*i+1]-referencetemperature),EnthalpyAnalysisEnum));
+				constraints->AddObject(new SpcStatic(iomodel->constraintcounter+count+1,iomodel->nodecounter+i+1,1,heatcapacity*(spctemperature[i]-referencetemperature),EnthalpyAnalysisEnum));
 				count++;