diff --git a/libgo/go/syscall/export_aix_test.go b/libgo/go/syscall/export_aix_test.go
new file mode 100644
index 0000000..044337b
--- /dev/null
+++ b/libgo/go/syscall/export_aix_test.go
@@ -0,0 +1,16 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix
+
+package syscall
+
+import (
+	"unsafe"
+)
+
+func Ioctl(fd, req, arg uintptr) (err Errno) {
+	_, err = raw_ioctl_ptr(int(fd), req, unsafe.Pointer(arg))
+	return err
+}
diff --git a/libgo/go/syscall/export_unix_test.go b/libgo/go/syscall/export_unix_test.go
index dc11f45..4d67be9 100644
--- a/libgo/go/syscall/export_unix_test.go
+++ b/libgo/go/syscall/export_unix_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build aix darwin dragonfly freebsd hurd linux netbsd openbsd solaris
+// +build darwin dragonfly freebsd hurd linux netbsd openbsd solaris
 
 package syscall