diff --git a/src/tetDecompositionFiniteElement/tetPolyMeshCellDecomp/MapTetFemFieldsCellDecomp/tetPointMapperCellDecomp.H b/src/tetDecompositionFiniteElement/tetPolyMeshCellDecomp/MapTetFemFieldsCellDecomp/tetPointMapperCellDecomp.H
index ab50f23f4..bc131fd4a 100644
--- a/src/tetDecompositionFiniteElement/tetPolyMeshCellDecomp/MapTetFemFieldsCellDecomp/tetPointMapperCellDecomp.H
+++ b/src/tetDecompositionFiniteElement/tetPolyMeshCellDecomp/MapTetFemFieldsCellDecomp/tetPointMapperCellDecomp.H
@@ -150,7 +150,7 @@ public:
         //- Return interpolated addressing
         virtual const labelListList& addressing() const;
 
-        //- Return interpolaion weights
+        //- Return interpolation weights
         virtual const scalarListList& weights() const;
 
         //- Are there any inserted faces
diff --git a/src/tetDecompositionFiniteElement/tetPolyMeshFaceDecomp/MapTetFemFieldsFaceDecomp/tetPointMapperFaceDecomp.H b/src/tetDecompositionFiniteElement/tetPolyMeshFaceDecomp/MapTetFemFieldsFaceDecomp/tetPointMapperFaceDecomp.H
index 3c752cacc..b4ad329b2 100644
--- a/src/tetDecompositionFiniteElement/tetPolyMeshFaceDecomp/MapTetFemFieldsFaceDecomp/tetPointMapperFaceDecomp.H
+++ b/src/tetDecompositionFiniteElement/tetPolyMeshFaceDecomp/MapTetFemFieldsFaceDecomp/tetPointMapperFaceDecomp.H
@@ -155,7 +155,7 @@ public:
         //- Return interpolated addressing
         virtual const labelListList& addressing() const;
 
-        //- Return interpolaion weights
+        //- Return interpolation weights
         virtual const scalarListList& weights() const;
 
         //- Are there any inserted faces
diff --git a/src/tetDecompositionFiniteElement/tetPolyMeshFaceDecomp/MapTetFemFieldsFaceDecomp/tetPolyPatchMapperFaceDecomp.H b/src/tetDecompositionFiniteElement/tetPolyMeshFaceDecomp/MapTetFemFieldsFaceDecomp/tetPolyPatchMapperFaceDecomp.H
index 28a3958a1..81b369fd4 100644
--- a/src/tetDecompositionFiniteElement/tetPolyMeshFaceDecomp/MapTetFemFieldsFaceDecomp/tetPolyPatchMapperFaceDecomp.H
+++ b/src/tetDecompositionFiniteElement/tetPolyMeshFaceDecomp/MapTetFemFieldsFaceDecomp/tetPolyPatchMapperFaceDecomp.H
@@ -144,7 +144,7 @@ public:
         //- Return interpolated addressing
         virtual const labelListList& addressing() const;
 
-        //- Return interpolaion weights
+        //- Return interpolation weights
         virtual const scalarListList& weights() const;
 
 };