diff --git a/src/finiteVolume/fields/fvPatchFields/derived/mappedFixedValue/mappedFixedValueFvPatchField.H b/src/finiteVolume/fields/fvPatchFields/derived/mappedFixedValue/mappedFixedValueFvPatchField.H
index b7838497e5a2ce3f661f9dbc33b2a00c1ef945eb..d60ae3bc3ca88960b8dba13f230c8a55479fdde4 100644
--- a/src/finiteVolume/fields/fvPatchFields/derived/mappedFixedValue/mappedFixedValueFvPatchField.H
+++ b/src/finiteVolume/fields/fvPatchFields/derived/mappedFixedValue/mappedFixedValueFvPatchField.H
@@ -71,7 +71,10 @@ class mappedFixedValueFvPatchField
 :
     public fixedValueFvPatchField<Type>
 {
-    // Private data
+
+protected:
+
+    // Protected data
 
         //- Name of field to sample - defaults to field associated with this
         //  patchField if not specified
@@ -90,7 +93,7 @@ class mappedFixedValueFvPatchField
         mutable autoPtr<interpolation<Type> > interpolator_;
 
 
-    // Private Member Functions
+    // Protected Member Functions
 
         //- Field to sample. Either on my or nbr mesh
         const GeometricField<Type, fvPatchField, volMesh>& sampleField() const;
diff --git a/src/meshTools/mappedPatches/mappedPolyPatch/mappedPatchBase.H b/src/meshTools/mappedPatches/mappedPolyPatch/mappedPatchBase.H
index 3afb9d8c4b67824509e38506fd377a4766d5885c..68c432e97aadc3be08e4cdfea6b34cabe048b8ff 100644
--- a/src/meshTools/mappedPatches/mappedPolyPatch/mappedPatchBase.H
+++ b/src/meshTools/mappedPatches/mappedPolyPatch/mappedPatchBase.H
@@ -146,9 +146,9 @@ public:
     };
 
 
-private:
+protected:
 
-    // Private data
+    // Protected data
 
         //- Patch to sample
         const polyPatch& patch_;
@@ -199,7 +199,7 @@ private:
             dictionary surfDict_;
 
 
-    // Private Member Functions
+    // Protected Member Functions
 
         //- Collect single list of samples and originating processor+face.
         void collectSamples