diff --git a/src/lagrangian/intermediate/submodels/Reacting/CompositionModel/CompositionModel/CompositionModel.C b/src/lagrangian/intermediate/submodels/Reacting/CompositionModel/CompositionModel/CompositionModel.C
index faafdd551d728579c1f6857ff4de0c53fe0151d4..76a22ffe443791ed8d27c0ba0118b4724b299891 100644
--- a/src/lagrangian/intermediate/submodels/Reacting/CompositionModel/CompositionModel/CompositionModel.C
+++ b/src/lagrangian/intermediate/submodels/Reacting/CompositionModel/CompositionModel/CompositionModel.C
@@ -396,7 +396,7 @@ Foam::scalar Foam::CompositionModel<CloudType>::H
             forAll(Y, i)
             {
                 label gid = props.globalIds()[i];
-                HMixture += Y[i]*thermo_.carrier().Hs(gid, p, T);
+                HMixture += Y[i]*thermo_.carrier().Ha(gid, p, T);
             }
             break;
         }