diff --git a/src/OpenFOAM/primitives/functions/DataEntry/Constant/Constant.C b/src/OpenFOAM/primitives/functions/DataEntry/Constant/Constant.C
index e4f60195a840533e725cccc8d3e4d431f5c1f9d1..87a78b64cb781b05b2e7f8e72d3fa4797c6f9501 100644
--- a/src/OpenFOAM/primitives/functions/DataEntry/Constant/Constant.C
+++ b/src/OpenFOAM/primitives/functions/DataEntry/Constant/Constant.C
@@ -3,7 +3,7 @@
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
     \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
-     \\/     M anipulation  |
+     \\/     M anipulation  | Copyright (C) 2015 OpenCFD Ltd
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -55,6 +55,20 @@ Foam::Constant<Type>::Constant(const word& entryName, const dictionary& dict)
 }
 
 
+template<class Type>
+Foam::Constant<Type>::Constant
+(
+    const word& entryName,
+    const Type& value,
+    const dimensionSet& dimensions
+)
+:
+    DataEntry<Type>(entryName),
+    value_(value),
+    dimensions_(dimensions)
+{}
+
+
 template<class Type>
 Foam::Constant<Type>::Constant(const Constant<Type>& cnst)
 :
diff --git a/src/OpenFOAM/primitives/functions/DataEntry/Constant/Constant.H b/src/OpenFOAM/primitives/functions/DataEntry/Constant/Constant.H
index 0c251fec033c4775487bf91c3f7d04ab2e3085a3..024eca67259c990570e8f4d6886594c66811e3f6 100644
--- a/src/OpenFOAM/primitives/functions/DataEntry/Constant/Constant.H
+++ b/src/OpenFOAM/primitives/functions/DataEntry/Constant/Constant.H
@@ -3,7 +3,7 @@
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
     \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
-     \\/     M anipulation  |
+     \\/     M anipulation  | Copyright (C) 2015 OpenCFD Ltd
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -86,7 +86,15 @@ public:
 
     // Constructors
 
-        //- Construct from entry name and Istream
+        //- Construct from components
+        Constant
+        (
+            const word& entryName,
+            const Type& value,
+            const dimensionSet& dimensions = dimless
+        );
+
+        //- Construct from entry name and dictionary
         Constant(const word& entryName, const dictionary& dict);
 
         //- Copy constructor