1 files changed, 1 insertions, 8 deletions
diff --git a/Eigen/src/Sparse/SparseMatrix.h b/Eigen/src/Sparse/SparseMatrix.h
index d884e7df8..bba0404c3 100644
--- a/Eigen/src/Sparse/SparseMatrix.h
+++ b/Eigen/src/Sparse/SparseMatrix.h
@@ -51,20 +51,13 @@ struct ei_traits<SparseMatrix<_Scalar, _Options> >
     ColsAtCompileTime = Dynamic,
     MaxRowsAtCompileTime = Dynamic,
     MaxColsAtCompileTime = Dynamic,
-    Flags = _Options,
+    Flags = _Options | NestByRefBit,
     CoeffReadCost = NumTraits<Scalar>::ReadCost,
     SupportedAccessPatterns = InnerRandomAccessPattern
   };
 };
 
 template<typename _Scalar, int _Options>
-struct ei_ref_selector<SparseMatrix<_Scalar, _Options> >
-{
-  typedef SparseMatrix<_Scalar, _Options> MatrixType;
-  typedef MatrixType const& type;
-};
-
-template<typename _Scalar, int _Options>
 class SparseMatrix
   : public SparseMatrixBase<SparseMatrix<_Scalar, _Options> >
 {