diff --git a/unum/vendor/golang.org/x/net/bpf/setter.go b/unum/vendor/golang.org/x/net/bpf/setter.go
new file mode 100644
index 0000000..43e35f0
--- /dev/null
+++ b/unum/vendor/golang.org/x/net/bpf/setter.go
@@ -0,0 +1,10 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package bpf
+
+// A Setter is a type which can attach a compiled BPF filter to itself.
+type Setter interface {
+	SetBPF(filter []RawInstruction) error
+}