diff --git a/test/Core/interface_tests.jl b/test/Core/interface_tests.jl
index dfbd4f81..c4aa6ae8 100644
--- a/test/Core/interface_tests.jl
+++ b/test/Core/interface_tests.jl
@@ -136,9 +136,10 @@ push!(testda, [-1, -2, -3, -4])
 @inferred mapreduce(string, *, testva)
 
 # sum must follow Base's promotion, not the element type (issue #595):
-# `Int8` elements sum to `Int64`, so asserting the result is `::Int8` is wrong.
-@test sum(VA[Int8[1, 2, 3]]) === Int64(6)
-@test sum(VA[Int8[1, 2], Int8[3, 4]]) === Int64(10)
+# `Int8` elements sum to native `Int` (Int64 on 64-bit, Int32 on 32-bit),
+# so asserting the result is `::Int8` is wrong.
+@test sum(VA[Int8[1, 2, 3]]) === Int(6)
+@test sum(VA[Int8[1, 2], Int8[3, 4]]) === Int(10)
 @test sum(VA[Float32[1, 2, 3]]) === 6.0f0
 @inferred sum(VA[Int8[1, 2, 3]])
 # Type stability for `end` indexing (issue #525)