src/cmd/go/go_test.go | 2 +-

diff --git a/src/cmd/go/go_test.go b/src/cmd/go/go_test.go
index 79734f90ed47f3fcedd244474d22b83f13f30a8c..a6eaef6293ac50fba4f706f32f4af9f453a17f69 100644
--- a/src/cmd/go/go_test.go
+++ b/src/cmd/go/go_test.go
@@ -2737,7 +2737,7 @@ 		var _ = xmain.X
 		func TestFoo(t *testing.T) {}
 	`)
 	tg.setenv("GOPATH", tg.path("."))
-	tg.creatingTemp("x")
+	tg.creatingTemp("x" + exeSuffix)
 	tg.run("build", "x")
 	tg.run("test", "x")