diff --git a/src/turbulenceModels/compressible/turbulenceModel/derivedFvPatchFields/temperatureCoupledBase/temperatureCoupledBase.H b/src/turbulenceModels/compressible/turbulenceModel/derivedFvPatchFields/temperatureCoupledBase/temperatureCoupledBase.H
index 612d49b0bd..f90c8d90f3 100644
--- a/src/turbulenceModels/compressible/turbulenceModel/derivedFvPatchFields/temperatureCoupledBase/temperatureCoupledBase.H
+++ b/src/turbulenceModels/compressible/turbulenceModel/derivedFvPatchFields/temperatureCoupledBase/temperatureCoupledBase.H
@@ -74,9 +74,9 @@ public:
         };
 
 
-private:
+protected:
 
-    // Private data
+    // Protected data
 
         static const NamedEnum<KMethodType, 4> KMethodTypeNames_;