diff --git a/applications/solvers/stressAnalysis/solidDisplacementFoam/readThermalProperties.H b/applications/solvers/stressAnalysis/solidDisplacementFoam/readThermalProperties.H
index 362cbfc71d..7b53ce2295 100644
--- a/applications/solvers/stressAnalysis/solidDisplacementFoam/readThermalProperties.H
+++ b/applications/solvers/stressAnalysis/solidDisplacementFoam/readThermalProperties.H
@@ -44,8 +44,8 @@ volScalarField DT
 );
 
 
-// Cache "C" for use in thermal BCs
-autoPtr<volScalarField> CPtr;
+// Cache "k" for use in thermal BCs
+autoPtr<volScalarField> rhoKPtr;
 
 if (thermalStress)
 {
@@ -58,6 +58,8 @@ if (thermalStress)
         IOobject::NO_WRITE
     );
 
+    autoPtr<volScalarField> CPtr;
+
     const dictionary& CDict(thermalProperties.subDict("C"));
     word CType(CDict.lookup("type"));
     if (CType == "uniform")
@@ -101,8 +103,6 @@ if (thermalStress)
 
     volScalarField& C = CPtr();
 
-    autoPtr<volScalarField> rhoKPtr;
-
     IOobject rhoKIO
     (
         "k",