diff --git a/jl/linalg_lapack.jl b/jl/linalg_lapack.jl
index a58f42777dc44..81aa0d8928a08 100644
--- a/jl/linalg_lapack.jl
+++ b/jl/linalg_lapack.jl
@@ -661,3 +661,5 @@ function (\){T<:Union(Float64,Float32,Complex128,Complex64)}(A::StridedMatrix{T}
 end
 
 (\){T1<:Real, T2<:Real}(A::StridedMatrix{T1}, B::StridedVecOrMat{T2}) = (\)(float64(A), float64(B))
+
+(/){T1<:Real, T2<:Real}(A::StridedVecOrMat{T1}, B::StridedVecOrMat{T2}) = (B' \ A')'