diff --git a/src/lagrangian/distributionModels/distributionModel/distributionModel.C b/src/lagrangian/distributionModels/distributionModel/distributionModel.C
index ea332b9e1e..83772fc77b 100644
--- a/src/lagrangian/distributionModels/distributionModel/distributionModel.C
+++ b/src/lagrangian/distributionModels/distributionModel/distributionModel.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) 2011-2013 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -124,4 +124,15 @@ Foam::scalar Foam::distributionModels::distributionModel::maxValue() const
 }
 
 
+Foam::scalar Foam::distributionModels::distributionModel::meanValue() const
+{
+    notImplemented
+    (
+        "Foam::scalar "
+        "Foam::distributionModels::distributionModel::meanValue() const"
+    );
+    return 0.0;
+}
+
+
 // ************************************************************************* //
diff --git a/src/lagrangian/distributionModels/distributionModel/distributionModel.H b/src/lagrangian/distributionModels/distributionModel/distributionModel.H
index a9099eb3f7..efc7f2b1ad 100644
--- a/src/lagrangian/distributionModels/distributionModel/distributionModel.H
+++ b/src/lagrangian/distributionModels/distributionModel/distributionModel.H
@@ -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) 2011-2013 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -149,6 +149,9 @@ public:
 
         //- Return the maximum value
         virtual scalar maxValue() const;
+
+        //- Return the maximum value
+        virtual scalar meanValue() const;
 };