diff --git a/vendor/golang.org/x/sys/unix/zsysctl_openbsd_386.go b/vendor/golang.org/x/sys/unix/zsysctl_openbsd_386.go
index b005031..37dcc74 100644
--- a/vendor/golang.org/x/sys/unix/zsysctl_openbsd_386.go
+++ b/vendor/golang.org/x/sys/unix/zsysctl_openbsd_386.go
@@ -1,6 +1,8 @@
 // mksysctl_openbsd.pl
 // Code generated by the command above; DO NOT EDIT.
 
+// +build 386,openbsd
+
 package unix
 
 type mibentry struct {