diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorContractionCuda.h b/unsupported/Eigen/CXX11/src/Tensor/TensorContractionCuda.h
index f6bd949bd..6a81d3c71 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorContractionCuda.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorContractionCuda.h
@@ -1227,9 +1227,9 @@ struct TensorEvaluator<const TensorContractionOp<Indices, LeftArgType, RightArgT
   // If we want to compute A * B = C, where A is LHS and B is RHS, the code
   // will pretend B is LHS and A is RHS.
   typedef typename internal::conditional<
-    Layout == ColMajor, LeftArgType, RightArgType>::type EvalLeftArgType;
+    static_cast<int>(Layout) == static_cast<int>(ColMajor), LeftArgType, RightArgType>::type EvalLeftArgType;
   typedef typename internal::conditional<
-    Layout == ColMajor, RightArgType, LeftArgType>::type EvalRightArgType;
+    static_cast<int>(Layout) == static_cast<int>(ColMajor), RightArgType, LeftArgType>::type EvalRightArgType;
 
   static const int LDims =
       internal::array_size<typename TensorEvaluator<EvalLeftArgType, Device>::Dimensions>::value;