diff --git a/src/utils.jl b/src/utils.jl
index 6a6ab238..c4451455 100644
--- a/src/utils.jl
+++ b/src/utils.jl
@@ -75,7 +75,7 @@ shape() = ()
 @inline keepvectors(x, rest...) = keepvectors(rest...)
 keepvectors() = ()
 
-@inline lispyprod(p, v::Vector{T}, rest...) where T = lispyprod(p*zero(T), rest...)
+@inline lispyprod(p, v::AbstractVector{T}, rest...) where T = lispyprod(p*zero(T), rest...)
 @inline lispyprod(p, x::Number, rest...) = lispyprod(p*x, rest...)
 lispyprod(p) = p
 
diff --git a/test/extrapolation/runtests.jl b/test/extrapolation/runtests.jl
index 490be37b..15c20c55 100644
--- a/test/extrapolation/runtests.jl
+++ b/test/extrapolation/runtests.jl
@@ -101,6 +101,10 @@ using Test
     itp = LinearInterpolation(xs, ys, extrapolation_bc = Flat())
     @test itp(8.3) ≈ ys[end]
 
+    # Issue #288
+    etp = extrapolate(interpolate(collect(1:12), NoInterp()) , 0)
+    @test etp(0:23) == [0:12; zeros(Int, 11)]
+
     include("type-stability.jl")
     include("non1.jl")
 end