diff --git a/Eigen/src/Core/CoreEvaluators.h b/Eigen/src/Core/CoreEvaluators.h
index 412f5a661..54276b836 100644
--- a/Eigen/src/Core/CoreEvaluators.h
+++ b/Eigen/src/Core/CoreEvaluators.h
@@ -139,14 +139,14 @@ public:
     EIGEN_ONLY_USED_FOR_DEBUG(outerStride);
     eigen_internal_assert(outerStride==OuterStride);
   }
-  Index outerStride() const { return OuterStride; }
+  EIGEN_DEVICE_FUNC Index outerStride() const { return OuterStride; }
   const Scalar *data;
 };
 
 template<typename Scalar> class plainobjectbase_evaluator_data<Scalar,Dynamic> {
 public:
   plainobjectbase_evaluator_data(const Scalar* ptr, Index outerStride) : data(ptr), m_outerStride(outerStride) {}
-  Index outerStride() const { return m_outerStride; }
+  EIGEN_DEVICE_FUNC Index outerStride() const { return m_outerStride; }
   const Scalar *data;
 protected:
   Index m_outerStride;