diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorForcedEval.h b/unsupported/Eigen/CXX11/src/Tensor/TensorForcedEval.h
index 65fd25a2e..c16bf7e67 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorForcedEval.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorForcedEval.h
@@ -116,7 +116,7 @@ struct TensorEvaluator<const TensorForcedEvalOp<ArgType>, Device>
     }
     typedef TensorEvalToOp<const ArgType> EvalTo;
     EvalTo evalToTmp(m_buffer, m_op);
-    const bool PacketAccess = internal::IsVectorizable<Device, ArgType>::value;
+    const bool PacketAccess = internal::IsVectorizable<Device, const ArgType>::value;
     internal::TensorExecutor<const EvalTo, Device, PacketAccess>::run(evalToTmp, m_device);
     m_impl.cleanup();
     return true;