diff --git a/src/thermophysicalModels/basic/heThermo/heThermo.C b/src/thermophysicalModels/basic/heThermo/heThermo.C
index 5b7462e4..d6c99c81 100644
--- a/src/thermophysicalModels/basic/heThermo/heThermo.C
+++ b/src/thermophysicalModels/basic/heThermo/heThermo.C
@@ -117,7 +117,7 @@ Foam::heThermo<BasicThermo, MixtureType>::heThermo
             mesh.time().timeName(),
             mesh,
             IOobject::NO_READ,
-            IOobject::NO_WRITE
+            IOobject::AUTO_WRITE
         ),
         mesh,
         dimEnergy/dimMass,
@@ -133,7 +133,7 @@ Foam::heThermo<BasicThermo, MixtureType>::heThermo
             mesh.time().timeName(),
             mesh,
             IOobject::NO_READ,
-            IOobject::NO_WRITE
+            IOobject::AUTO_WRITE
         ),
         mesh,
         dimCurrent*dimTime/dimMass
@@ -165,7 +165,7 @@ Foam::heThermo<BasicThermo, MixtureType>::heThermo
             mesh.time().timeName(),
             mesh,
             IOobject::NO_READ,
-            IOobject::NO_WRITE
+            IOobject::AUTO_WRITE
         ),
         mesh,
         dimEnergy/dimMass,
@@ -181,7 +181,7 @@ Foam::heThermo<BasicThermo, MixtureType>::heThermo
             mesh.time().timeName(),
             mesh,
             IOobject::NO_READ,
-            IOobject::NO_WRITE
+            IOobject::AUTO_WRITE
         ),
         mesh,
         dimCurrent*dimTime/dimMass