diff --git a/acceptance/18-osutil-authentication.go b/acceptance/18-osutil-authentication.go
index 936f376..01ff4e9 100644
--- a/acceptance/18-osutil-authentication.go
+++ b/acceptance/18-osutil-authentication.go
@@ -1,3 +1,5 @@
+// +build acceptance,old
+
 package main
 
 import (