diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorMorphing.h b/unsupported/Eigen/CXX11/src/Tensor/TensorMorphing.h
index bdc86e0fa..d8c923d74 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorMorphing.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorMorphing.h
@@ -443,7 +443,7 @@ struct TensorEvaluator<const TensorSlicingOp<StartIndices, Sizes, ArgType>, Devi
       return rslt;
     }
     else {
-      typename internal::remove_const<CoeffReturnType>::type values[packetSize];
+      EIGEN_ALIGN_MAX typename internal::remove_const<CoeffReturnType>::type values[packetSize];
       values[0] = m_impl.coeff(inputIndices[0]);
       values[packetSize-1] = m_impl.coeff(inputIndices[1]);
       for (int i = 1; i < packetSize-1; ++i) {