diff --git a/process.go b/process_unix.go
similarity index 97%
rename from process.go
rename to process_unix.go
index b5108a1..e7a30c3 100644
--- a/process.go
+++ b/process_unix.go
@@ -1,3 +1,6 @@
+//go:build unix
+// +build unix
+
 package main
 
 import (