diff --git a/base/sparse/umfpack.jl b/base/sparse/umfpack.jl
index 3b426bb9f234d..25f4b9935a7d1 100644
--- a/base/sparse/umfpack.jl
+++ b/base/sparse/umfpack.jl
@@ -157,7 +157,6 @@ lufact{T<:AbstractFloat}(A::Union{SparseMatrixCSC{T},SparseMatrixCSC{Complex{T}}
     "sparse floating point LU using UMFPACK or lufact(full(A)) for generic ",
     "dense LU.")))
 lufact(A::SparseMatrixCSC) = lufact(float(A))
-lufact(A::SparseMatrixCSC, pivot::Type{Val{false}}) = lufact(A)
 
 
 size(F::UmfpackLU) = (F.m, F.n)
diff --git a/test/sparsedir/umfpack.jl b/test/sparsedir/umfpack.jl
index 6db636a20353e..6ce7877e58011 100644
--- a/test/sparsedir/umfpack.jl
+++ b/test/sparsedir/umfpack.jl
@@ -136,4 +136,12 @@ let
     @test_throws ArgumentError Base.SparseArrays.UMFPACK.solve!(a, lufact(speye(5,5)), a, Base.SparseArrays.UMFPACK.UMFPACK_A)
     aa = complex(a)
     @test_throws ArgumentError Base.SparseArrays.UMFPACK.solve!(aa, lufact(complex(speye(5,5))), aa, Base.SparseArrays.UMFPACK.UMFPACK_A)
-end
\ No newline at end of file
+end
+
+#18246,18244-lufact sparse pivot
+let
+    A = speye(4)
+    A[1:2,1:2] = [-.01 -200; 200 .001]
+    F = lufact(A)
+    @test F[:p] == [3 ; 4 ; 2 ; 1]
+end