--- trunk/src/integrators/NPrT.cpp	2013/06/16 15:15:42	1879
+++ trunk/src/integrators/NPrT.cpp	2015/03/05 16:30:23	2069
@@ -170,11 +170,11 @@ namespace OpenMD {
     RealType barostat_potential = (targetPressure * thermo.getVolume() / PhysicalConstants::pressureConvert) /PhysicalConstants::energyConvert;
 
     Mat3x3d hmat = snap->getHmat();
-    RealType hz = hmat(2, 2);
     RealType area = hmat(0,0) * hmat(1, 1);
 
-    RealType conservedQuantity = totalEnergy + thermostat_kinetic + thermostat_potential +
-      barostat_kinetic + barostat_potential - surfaceTension * area/ PhysicalConstants::energyConvert;
+    RealType conservedQuantity = totalEnergy + thermostat_kinetic
+      + thermostat_potential + barostat_kinetic + barostat_potential
+      - surfaceTension * area/ PhysicalConstants::energyConvert;
 
     return conservedQuantity;