diff --git a/dune/elasticity/common/referenceneumannfunction.hh b/dune/elasticity/common/referenceneumannfunction.hh
index 945aae91392f229e63ddcec8903f19b5a64c7c37..f81df2ce45efaf3b86d4fd97a985687137a6bde7 100644
--- a/dune/elasticity/common/referenceneumannfunction.hh
+++ b/dune/elasticity/common/referenceneumannfunction.hh
@@ -36,8 +36,9 @@ public:
     displacementField_(basis, displacementCoefficient)
   {}
 
-  virtual void evaluateLocal(const Element& e, const LocalDomainType& x, RangeType& y) const override
+  void evaluateLocal(const Element& e, const LocalDomainType& x, RangeType& y) const override
   {
+
     typename Base::DerivativeType deformationGradient, invTransposedDefGradient;
     displacementField_.evaluateDerivativeLocal(e, x, deformationGradient);
     Dune::MatrixVector::addToDiagonal(deformationGradient, 1.0);