diff --git a/src/thermophysicalModels/solidChemistryModel/solidChemistryModel/solidChemistryModelI.H b/src/thermophysicalModels/solidChemistryModel/solidChemistryModel/solidChemistryModelI.H
index 3dcef1dea1..a8ca96b291 100644
--- a/src/thermophysicalModels/solidChemistryModel/solidChemistryModel/solidChemistryModelI.H
+++ b/src/thermophysicalModels/solidChemistryModel/solidChemistryModel/solidChemistryModelI.H
@@ -119,7 +119,7 @@ Foam::solidChemistryModel<CompType, SolidThermo>::RRsHs() const
 
     if (this->chemistry_)
     {
-        DimensionedField<scalar, volMesh>& RRs = tRRsHs();
+        DimensionedField<scalar, volMesh>& RRs = tRRsHs.ref();
 
         const volScalarField& T =  this->solidThermo().T();
         const volScalarField& p =  this->solidThermo().p();