diff --git a/applications/solvers/combustion/coalChemistryFoam/coalChemistryFoam.C b/applications/solvers/combustion/coalChemistryFoam/coalChemistryFoam.C
index 18dbce7757..7e5613cb91 100644
--- a/applications/solvers/combustion/coalChemistryFoam/coalChemistryFoam.C
+++ b/applications/solvers/combustion/coalChemistryFoam/coalChemistryFoam.C
@@ -39,7 +39,7 @@ Description
 #include "chemistryModel.H"
 #include "chemistrySolver.H"
 #include "reactingThermoTypes.H"
-#include "timeActivatedExplicitSource.H"
+#include "timeActivatedExplicitCellSource.H"
 #include "radiationModel.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@@ -113,8 +113,6 @@ int main(int argc, char *argv[])
 
         turbulence->correct();
 
-        enthalpySource.update();
-
         rho = thermo->rho();
 
         if (runTime.write())
diff --git a/applications/solvers/combustion/coalChemistryFoam/createFields.H b/applications/solvers/combustion/coalChemistryFoam/createFields.H
index ebd8a44ab6..7232cc4244 100644
--- a/applications/solvers/combustion/coalChemistryFoam/createFields.H
+++ b/applications/solvers/combustion/coalChemistryFoam/createFields.H
@@ -105,8 +105,8 @@
     volScalarField DpDt =
         fvc::DDt(surfaceScalarField("phiU", phi/fvc::interpolate(rho)), p);
 
-    Info<< "\nConstructing explicit enthalpy source" << endl;
-    timeActivatedExplicitSource enthalpySource
+    Info<< "\nConstructing explicit enthalpy cell source" << endl;
+    timeActivatedExplicitCellSource enthalpySource
     (
         "enthalpySource",
         mesh,