diff --git a/src/OpenFOAM/meshes/polyMesh/polyPatches/basic/coupled/coupledPolyPatch.C b/src/OpenFOAM/meshes/polyMesh/polyPatches/basic/coupled/coupledPolyPatch.C
index e25deeb66b..545ce686b8 100644
--- a/src/OpenFOAM/meshes/polyMesh/polyPatches/basic/coupled/coupledPolyPatch.C
+++ b/src/OpenFOAM/meshes/polyMesh/polyPatches/basic/coupled/coupledPolyPatch.C
@@ -34,7 +34,7 @@ namespace Foam
 {
     defineTypeNameAndDebug(coupledPolyPatch, 0);
 
-    scalar coupledPolyPatch::defaultMatchTol = 1E-4;
+    const scalar coupledPolyPatch::defaultMatchTol_ = 1E-4;
 
     template<>
     const char* NamedEnum<coupledPolyPatch::transformType, 4>::names[] =
@@ -403,7 +403,7 @@ Foam::coupledPolyPatch::coupledPolyPatch
 )
 :
     polyPatch(name, size, start, index, bm),
-    matchTolerance_(defaultMatchTol)
+    matchTolerance_(defaultMatchTol_)
 {}
 
 
@@ -416,7 +416,7 @@ Foam::coupledPolyPatch::coupledPolyPatch
 )
 :
     polyPatch(name, dict, index, bm),
-    matchTolerance_(dict.lookupOrDefault("matchTolerance", defaultMatchTol))
+    matchTolerance_(dict.lookupOrDefault("matchTolerance", defaultMatchTol_))
 {}
 
 
@@ -470,7 +470,7 @@ Foam::coupledPolyPatch::~coupledPolyPatch()
 void Foam::coupledPolyPatch::write(Ostream& os) const
 {
     polyPatch::write(os);
-    //if (matchTolerance_ != defaultMatchTol)
+    //if (matchTolerance_ != defaultMatchTol_)
     {
         os.writeKeyword("matchTolerance") << matchTolerance_
             << token::END_STATEMENT << nl;
diff --git a/src/OpenFOAM/meshes/polyMesh/polyPatches/basic/coupled/coupledPolyPatch.H b/src/OpenFOAM/meshes/polyMesh/polyPatches/basic/coupled/coupledPolyPatch.H
index 5add7fb04d..58cb8e66fa 100644
--- a/src/OpenFOAM/meshes/polyMesh/polyPatches/basic/coupled/coupledPolyPatch.H
+++ b/src/OpenFOAM/meshes/polyMesh/polyPatches/basic/coupled/coupledPolyPatch.H
@@ -69,6 +69,9 @@ private:
 
     // Private data
 
+        //- default matching tolerance
+        static const scalar defaultMatchTol_;
+
         //- local matching tolerance
         const scalar matchTolerance_;
 
@@ -179,8 +182,6 @@ public:
     //- Runtime type information
     TypeName("coupled");
 
-    //- default matching tolerance
-    static scalar defaultMatchTol;
 
     // Constructors
 
diff --git a/src/mesh/conformalVoronoiMesh/conformalVoronoiMesh/conformalVoronoiMeshCalcDualMesh.C b/src/mesh/conformalVoronoiMesh/conformalVoronoiMesh/conformalVoronoiMeshCalcDualMesh.C
index 39a841b07a..9a54c1361a 100644
--- a/src/mesh/conformalVoronoiMesh/conformalVoronoiMesh/conformalVoronoiMeshCalcDualMesh.C
+++ b/src/mesh/conformalVoronoiMesh/conformalVoronoiMesh/conformalVoronoiMeshCalcDualMesh.C
@@ -1458,8 +1458,6 @@ Foam::labelHashSet Foam::conformalVoronoiMesh::checkPolyMeshQuality
 
     label nValidPatches = 0;
 
-    // coupledPolyPatch::defaultMatchTol = 1e-3;
-
     forAll(patches, p)
     {
         if (patchTypes[p] == processorPolyPatch::typeName)