diff --git a/src/thermophysicalModels/radiation/derivedFvPatchFields/greyDiffusiveRadiation/greyDiffusiveRadiationMixedFvPatchScalarField.C b/src/thermophysicalModels/radiation/derivedFvPatchFields/greyDiffusiveRadiation/greyDiffusiveRadiationMixedFvPatchScalarField.C
index e7daa58aaf..1f9a6ac63c 100644
--- a/src/thermophysicalModels/radiation/derivedFvPatchFields/greyDiffusiveRadiation/greyDiffusiveRadiationMixedFvPatchScalarField.C
+++ b/src/thermophysicalModels/radiation/derivedFvPatchFields/greyDiffusiveRadiation/greyDiffusiveRadiationMixedFvPatchScalarField.C
@@ -151,7 +151,10 @@ updateCoeffs()
     const scalarField& Tp =
         patch().lookupPatchField<volScalarField, scalar>(TName_);
 
-    const fvDOM& dom = db().lookupObject<fvDOM>("radiationProperties");
+    const radiationModel& radiation =
+            db().lookupObject<radiationModel>("radiationProperties");
+
+    const fvDOM& dom(refCast<const fvDOM>(radiation));
 
     const label patchI = patch().index();
 
diff --git a/src/thermophysicalModels/radiation/derivedFvPatchFields/wideBandDiffusiveRadiation/wideBandDiffusiveRadiationMixedFvPatchScalarField.C b/src/thermophysicalModels/radiation/derivedFvPatchFields/wideBandDiffusiveRadiation/wideBandDiffusiveRadiationMixedFvPatchScalarField.C
index eb65337aca..eec4d22021 100644
--- a/src/thermophysicalModels/radiation/derivedFvPatchFields/wideBandDiffusiveRadiation/wideBandDiffusiveRadiationMixedFvPatchScalarField.C
+++ b/src/thermophysicalModels/radiation/derivedFvPatchFields/wideBandDiffusiveRadiation/wideBandDiffusiveRadiationMixedFvPatchScalarField.C
@@ -147,7 +147,10 @@ updateCoeffs()
         return;
     }
 
-    const fvDOM& dom = db().lookupObject<fvDOM>("radiationProperties");
+    const radiationModel& radiation =
+            db().lookupObject<radiationModel>("radiationProperties");
+
+    const fvDOM& dom(refCast<const fvDOM>(radiation));
 
     const label patchI = patch().index();
 
diff --git a/src/thermophysicalModels/radiation/radiationModel/fvDOM/radiativeIntensityRay/radiativeIntensityRay.C b/src/thermophysicalModels/radiation/radiationModel/fvDOM/radiativeIntensityRay/radiativeIntensityRay.C
index 96090a3ef2..74ec95827c 100644
--- a/src/thermophysicalModels/radiation/radiationModel/fvDOM/radiativeIntensityRay/radiativeIntensityRay.C
+++ b/src/thermophysicalModels/radiation/radiationModel/fvDOM/radiativeIntensityRay/radiativeIntensityRay.C
@@ -182,7 +182,7 @@ Foam::scalar Foam::radiation::radiativeIntensityRay::correct()
 
         fvScalarMatrix IiEq
         (
-            fvm::div(Ji, ILambda_[lambdaI], " div(Ji,Ii_h)")
+            fvm::div(Ji, ILambda_[lambdaI], "div(Ji,Ii_h)")
           + fvm::Sp(k*omega_, ILambda_[lambdaI])
          ==
             1.0/Foam::mathematicalConstant::pi