diff --git a/src/io.jl b/src/io.jl
index cfec539f..e028c5b9 100644
--- a/src/io.jl
+++ b/src/io.jl
@@ -115,3 +115,8 @@ getknots(X::AbstractExtrapolation) = getknots(parent(X))
 Base.show(io::IO, ::MIME{Symbol("text/plain")}, X::ScaledInterpolation)   = show_ranged(io, X, getknots(X))
 Base.show(io::IO, ::MIME{Symbol("text/plain")}, X::GriddedInterpolation)  = show_ranged(io, X, getknots(X))
 Base.show(io::IO, ::MIME{Symbol("text/plain")}, X::AbstractExtrapolation) = show_ranged(io, X, getknots(X))
+
+# these are called by show(X)
+Base.show(io::IO, X::ScaledInterpolation)   = show_ranged(io, X, getknots(X))
+Base.show(io::IO, X::GriddedInterpolation)  = show_ranged(io, X, getknots(X))
+Base.show(io::IO, X::AbstractExtrapolation) = show_ranged(io, X, getknots(X))
diff --git a/test/io.jl b/test/io.jl
index 0d58c89f..1f19a5b0 100644
--- a/test/io.jl
+++ b/test/io.jl
@@ -48,6 +48,10 @@ using Test
         show(io, MIME("text/plain"), itp)
         str = String(take!(io))
         @test str == "4-element interpolate((0.0:0.1:0.3,), ::Array{Float64,1}, Gridded(Linear())) with element type Float64:\n 0.25\n 0.5 \n 0.75\n 1.0 "
+        io2 = IOBuffer()
+        show(io2, itp)
+        str2 = String(take!(io2))
+        @test str2 == "4-element interpolate((0.0:0.1:0.3,), ::Array{Float64,1}, Gridded(Linear())) with element type Float64:\n 0.25\n 0.5 \n 0.75\n 1.0 "
     end
 
     @testset "scaled" begin
@@ -58,6 +62,10 @@ using Test
         show(io, MIME("text/plain"), sitp)
         str = String(take!(io))
         @test str == "10-element scale(interpolate(::Array{Float64,1}, BSpline(Linear())), (-3.0:0.5:1.5,)) with element type Float64:\n  1.0\n  2.0\n  3.0\n  4.0\n  5.0\n  6.0\n  7.0\n  8.0\n  9.0\n 10.0"
+        io2 = IOBuffer()
+        show(io2, sitp)
+        str2 = String(take!(io2))
+        @test str2 == "10-element scale(interpolate(::Array{Float64,1}, BSpline(Linear())), (-3.0:0.5:1.5,)) with element type Float64:\n  1.0\n  2.0\n  3.0\n  4.0\n  5.0\n  6.0\n  7.0\n  8.0\n  9.0\n 10.0"
 
         gauss(phi, mu, sigma) = exp(-(phi-mu)^2 / (2sigma)^2)
         testfunction(x,y) = gauss(x, 0.5, 4) * gauss(y, -.5, 2)
@@ -66,7 +74,12 @@ using Test
         zs = Float64[testfunction(x,y) for x in xs, y in ys]
         itp2 = interpolate(zs, BSpline(Quadratic(Flat(OnGrid()))))
         sitp2 = scale(itp2, xs, ys)
-        @test summary(sitp2) == "21×41 scale(interpolate(OffsetArray(::Array{Float64,2}, 0:22, 0:42), BSpline(Quadratic(Flat(OnGrid())))), (-5.0:0.5:5.0,$SPACE-4.0:0.2:4.0)) with element type Float64"
+        teststring = "21×41 scale(interpolate(OffsetArray(::Array{Float64,2}, 0:22, 0:42), BSpline(Quadratic(Flat(OnGrid())))), (-5.0:0.5:5.0,$SPACE-4.0:0.2:4.0)) with element type Float64"
+        @test summary(sitp2) == teststring
+        io3 = IOBuffer()
+        show(io3, sitp2)
+        str3 = String(take!(io3))
+        @test occursin(teststring, str3)
     end
 
     @testset "Monotonic" begin
@@ -81,10 +94,20 @@ using Test
 
         itpg = interpolate(A, BSpline(Linear()))
         etpg = extrapolate(itpg, Flat())
-        @test summary(etpg) == "8×20 extrapolate(interpolate(::Array{Float64,2}, BSpline(Linear())), Flat()) with element type Float64"
+        teststring = "8×20 extrapolate(interpolate(::Array{Float64,2}, BSpline(Linear())), Flat()) with element type Float64"
+        @test summary(etpg) == teststring
+        io = IOBuffer()
+        show(io, etpg)
+        str = String(take!(io))
+        @test occursin(teststring, str)
 
         etpf = extrapolate(itpg, NaN)
-        @test summary(etpf) == "8×20 extrapolate(interpolate(::Array{Float64,2}, BSpline(Linear())), NaN) with element type Float64"
+        teststring2 = "8×20 extrapolate(interpolate(::Array{Float64,2}, BSpline(Linear())), NaN) with element type Float64"
+        @test summary(etpf) == teststring2
+        io2 = IOBuffer()
+        show(io2, etpf)
+        str2 = String(take!(io2))
+        @test occursin(teststring2, str2)
     end
 
     @testset "Combinations" begin