diff --git a/src/combustionModels/singleStepCombustion/singleStepCombustion.C b/src/combustionModels/singleStepCombustion/singleStepCombustion.C
index aab73f7abf..fcbf4249d9 100644
--- a/src/combustionModels/singleStepCombustion/singleStepCombustion.C
+++ b/src/combustionModels/singleStepCombustion/singleStepCombustion.C
@@ -92,8 +92,7 @@ singleStepCombustion<CombThermoType, ThermoType>::~singleStepCombustion()
 // * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
 
 template<class CombThermoType, class ThermoType>
-Foam::tmp<Foam::fvScalarMatrix>
-singleStepCombustion<CombThermoType, ThermoType>::R
+tmp<fvScalarMatrix> singleStepCombustion<CombThermoType, ThermoType>::R
 (
     const volScalarField& Y
 ) const
@@ -110,8 +109,8 @@ singleStepCombustion<CombThermoType, ThermoType>::R
 
 
 template<class CombThermoType, class ThermoType>
-Foam::tmp<Foam::volScalarField>
-singleStepCombustion< CombThermoType, ThermoType>::Sh() const
+tmp<volScalarField>
+singleStepCombustion<CombThermoType, ThermoType>::Sh() const
 {
     const label fuelI = singleMixturePtr_->fuelIndex();
     const volScalarField& YFuel = this->thermoPtr_->composition().Y(fuelI);
@@ -121,8 +120,8 @@ singleStepCombustion< CombThermoType, ThermoType>::Sh() const
 
 
 template<class CombThermoType, class ThermoType>
-Foam::tmp<Foam::volScalarField>
-singleStepCombustion< CombThermoType, ThermoType>::dQ() const
+tmp<volScalarField>
+singleStepCombustion<CombThermoType, ThermoType>::dQ() const
 {
     tmp<volScalarField> tdQ
     (
@@ -153,7 +152,7 @@ singleStepCombustion< CombThermoType, ThermoType>::dQ() const
 
 
 template<class CombThermoType, class ThermoType>
-bool singleStepCombustion< CombThermoType, ThermoType>::read()
+bool singleStepCombustion<CombThermoType, ThermoType>::read()
 {
     if (CombThermoType::read())
     {