diff --git a/src/thermophysicalModels/chemistryModel/chemistryModel/ODEChemistryModel/ODEChemistryModel.C b/src/thermophysicalModels/chemistryModel/chemistryModel/ODEChemistryModel/ODEChemistryModel.C
index 117412407c..f0807eb725 100644
--- a/src/thermophysicalModels/chemistryModel/chemistryModel/ODEChemistryModel/ODEChemistryModel.C
+++ b/src/thermophysicalModels/chemistryModel/chemistryModel/ODEChemistryModel/ODEChemistryModel.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -743,6 +743,8 @@ Foam::scalar Foam::ODEChemistryModel<CompType, ThermoType>::solve
     const scalar deltaT
 )
 {
+    CompType::correct();
+
     scalar deltaTMin = GREAT;
 
     const volScalarField rho
diff --git a/src/thermophysicalModels/chemistryModel/chemistryModel/basicChemistryModel/basicChemistryModel.C b/src/thermophysicalModels/chemistryModel/chemistryModel/basicChemistryModel/basicChemistryModel.C
index 3b2aafecd8..38efa9e858 100644
--- a/src/thermophysicalModels/chemistryModel/chemistryModel/basicChemistryModel/basicChemistryModel.C
+++ b/src/thermophysicalModels/chemistryModel/chemistryModel/basicChemistryModel/basicChemistryModel.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -34,6 +34,18 @@ namespace Foam
     defineTypeNameAndDebug(basicChemistryModel, 0);
 }
 
+// * * * * * * * * * * * * * Protected Member Functions  * * * * * * * * * * //
+
+void Foam::basicChemistryModel::correct()
+{
+    if (mesh_.changing())
+    {
+        deltaTChem_.setSize(mesh_.nCells());
+        deltaTChem_ = deltaTChemIni_;
+    }
+}
+
+
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
 Foam::basicChemistryModel::basicChemistryModel(const fvMesh& mesh)
@@ -51,11 +63,8 @@ Foam::basicChemistryModel::basicChemistryModel(const fvMesh& mesh)
     ),
     mesh_(mesh),
     chemistry_(lookup("chemistry")),
-    deltaTChem_
-    (
-        mesh.nCells(),
-        readScalar(lookup("initialChemicalTimeStep"))
-    )
+    deltaTChemIni_(readScalar(lookup("initialChemicalTimeStep"))),
+    deltaTChem_(mesh.nCells(), deltaTChemIni_)
 {}
 
 
diff --git a/src/thermophysicalModels/chemistryModel/chemistryModel/basicChemistryModel/basicChemistryModel.H b/src/thermophysicalModels/chemistryModel/chemistryModel/basicChemistryModel/basicChemistryModel.H
index 607133ce7e..2f27d59f70 100644
--- a/src/thermophysicalModels/chemistryModel/chemistryModel/basicChemistryModel/basicChemistryModel.H
+++ b/src/thermophysicalModels/chemistryModel/chemistryModel/basicChemistryModel/basicChemistryModel.H
@@ -76,6 +76,9 @@ protected:
         //- Chemistry activation switch
         Switch chemistry_;
 
+        //- Initial chemical time step
+        const scalar deltaTChemIni_;
+
         //- Latest estimation of integration step
         scalarField deltaTChem_;
 
@@ -86,6 +89,9 @@ protected:
         //  step, e.g. for multi-chemistry model
         scalarField& deltaTChem();
 
+        //- Correct function - updates due to mesh changes
+        void correct();
+
 
 public: