diff --git a/ipv6/syscall_unix.go b/ipv6/syscall_unix.go
index 68f9342..a2bd836 100644
--- a/ipv6/syscall_unix.go
+++ b/ipv6/syscall_unix.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 darwin dragonfly freebsd linux,amd64 linux,arm linux,ppc64 linux,ppc64le netbsd openbsd
+// +build darwin dragonfly freebsd linux,!386 netbsd openbsd
 
 package ipv6