diff --git a/unsupported/Eigen/CXX11/src/Tensor/Tensor.h b/unsupported/Eigen/CXX11/src/Tensor/Tensor.h
index b56cb936f..4dbdbfb3e 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/Tensor.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/Tensor.h
@@ -105,7 +105,7 @@ class Tensor : public TensorBase<Tensor<Scalar_, NumIndices_, Options_, IndexTyp
 
 #ifdef EIGEN_HAS_VARIADIC_TEMPLATES
     template<typename... IndexTypes>
-    inline const Scalar& coeff(Index firstIndex, Index secondIndex, IndexTypes... otherIndices) const
+    EIGEN_DEVICE_FUNC inline const Scalar& coeff(Index firstIndex, Index secondIndex, IndexTypes... otherIndices) const
     {
       // The number of indices used to access a tensor coefficient must be equal to the rank of the tensor.
       EIGEN_STATIC_ASSERT(sizeof...(otherIndices) + 2 == NumIndices, YOU_MADE_A_PROGRAMMING_MISTAKE)
@@ -341,7 +341,7 @@ class Tensor : public TensorBase<Tensor<Scalar_, NumIndices_, Options_, IndexTyp
     }
 
 #ifdef EIGEN_HAS_VARIADIC_TEMPLATES
-    template<typename... IndexTypes>
+    template<typename... IndexTypes> EIGEN_DEVICE_FUNC 
     void resize(Index firstDimension, IndexTypes... otherDimensions)
     {
       // The number of dimensions used to resize a tensor must be equal to the rank of the tensor.