diff --git a/src/dynamicMesh/motionSolvers/motionSolver/motionSolver.H b/src/dynamicMesh/motionSolvers/motionSolver/motionSolver.H
index 660244b3ce07073ec7d0e4a2f2a6a962d811bcd9..54cf7987def2a07305c20ed50bc7968a5a607e86 100644
--- a/src/dynamicMesh/motionSolvers/motionSolver/motionSolver.H
+++ b/src/dynamicMesh/motionSolvers/motionSolver/motionSolver.H
@@ -105,7 +105,6 @@ public:
         class iNew
         {
             const polyMesh& mesh_;
-            mutable label index_;
 
         public: