diff --git a/src/thermophysicalModels/basic/basicThermo/basicThermo.H b/src/thermophysicalModels/basic/basicThermo/basicThermo.H
index ed7c7307f9..50b1d95752 100644
--- a/src/thermophysicalModels/basic/basicThermo/basicThermo.H
+++ b/src/thermophysicalModels/basic/basicThermo/basicThermo.H
@@ -416,10 +416,7 @@ public:
             virtual const volScalarField& alpha() const = 0;
 
             //- Thermal diffusivity for enthalpy of mixture for patch [kg/m/s]
-            virtual const scalarField& alpha
-            (
-                const label patchi
-            ) const = 0;
+            virtual const scalarField& alpha(const label patchi) const = 0;
 
 
         // Fields derived from transport state variables
@@ -429,10 +426,7 @@ public:
 
             //- Thermal diffusivity for temperature of mixture
             //  for patch [W/m/K]
-            virtual tmp<scalarField> kappa
-            (
-                const label patchi
-            ) const = 0;
+            virtual tmp<scalarField> kappa(const label patchi) const = 0;
 
             //- Thermal diffusivity for energy of mixture [kg/m/s]
             virtual tmp<volScalarField> alphahe() const = 0;