diff --git a/Eigen/src/Sparse/UmfPackSupport.h b/Eigen/src/Sparse/UmfPackSupport.h
index cde924964..950624758 100644
--- a/Eigen/src/Sparse/UmfPackSupport.h
+++ b/Eigen/src/Sparse/UmfPackSupport.h
@@ -127,7 +127,7 @@ class SparseLU<MatrixType,UmfPack> : public SparseLU<MatrixType>
     typedef Matrix<Scalar,Dynamic,1> Vector;
     typedef Matrix<int, 1, MatrixType::ColsAtCompileTime> IntRowVectorType;
     typedef Matrix<int, MatrixType::RowsAtCompileTime, 1> IntColVectorType;
-    typedef SparseMatrix<Scalar,Lower|UnitDiagBit> LMatrixType;
+    typedef SparseMatrix<Scalar,Lower|UnitDiag> LMatrixType;
     typedef SparseMatrix<Scalar,Upper> UMatrixType;
     using Base::m_flags;
     using Base::m_status;