diff --git a/dns.go b/dns.go
index 0a91795..768ac38 100644
--- a/dns.go
+++ b/dns.go
@@ -1,4 +1,4 @@
-// +build linux darwin
+// +build unix
 
 package main
 
diff --git a/dns_windows.go b/dns_other.go
similarity index 86%
rename from dns_windows.go
rename to dns_other.go
index 0665eb8..11fc5f1 100644
--- a/dns_windows.go
+++ b/dns_other.go
@@ -1,3 +1,5 @@
+// +build !unix
+
 package main
 
 import (