diff --git a/src/sampling/sampledSurface/writers/vtk/vtkSurfaceWriter.C b/src/sampling/sampledSurface/writers/vtk/vtkSurfaceWriter.C
index 5e6c38045b6cce60b0fe4b068ab688feb6156c9a..c3e5a62570d1ab2988cef711fab1ec29372a2cc8 100644
--- a/src/sampling/sampledSurface/writers/vtk/vtkSurfaceWriter.C
+++ b/src/sampling/sampledSurface/writers/vtk/vtkSurfaceWriter.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -55,7 +55,7 @@ void Foam::vtkSurfaceWriter::writeGeometry
         << "DATASET POLYDATA" << nl;
 
     // Write vertex coords
-    os  << "POINTS " << points.size() << " float" << nl;
+    os  << "POINTS " << points.size() << " double" << nl;
     forAll(points, pointI)
     {
         const point& pt = points[pointI];