diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionHeater/constant/polyMesh/boundary b/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionHeater/constant/polyMesh/boundary
index 2dec781e2..516b9f312 100644
--- a/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionHeater/constant/polyMesh/boundary
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionHeater/constant/polyMesh/boundary
@@ -1,6 +1,6 @@
 /*--------------------------------*- C++ -*----------------------------------*\
 | =========                 |                                                 |
-| \\      /  F ield         | OpenFOAM Extend Project: Open Source CFD        |
+| \\      /  F ield         | OpenFOAM Extend Project: Open source CFD        |
 |  \\    /   O peration     | Version:  1.6-ext                               |
 |   \\  /    A nd           | Web:      www.extend-project.de                 |
 |    \\/     M anipulation  |                                                 |