1diff --git a/src/net/lookup_unix.go b/src/net/lookup_unix.go
2index 8030e3d99e..5a7472d933 100644
3--- a/src/net/lookup_unix.go
4+++ b/src/net/lookup_unix.go
5@@ -21,7 +21,7 @@ var onceReadProtocols sync.Once
6 // readProtocols loads contents of /etc/protocols into protocols map
7 // for quick access.
8 func readProtocols() {
9- file, err := open("/etc/protocols")
10+ file, err := open("@iana@/etc/protocols")
11 if err != nil {
12 return
13 }
14diff --git a/src/net/port_unix.go b/src/net/port_unix.go
15index a9a96a2323..0df6efe9e5 100644
16--- a/src/net/port_unix.go
17+++ b/src/net/port_unix.go
18@@ -17,7 +17,7 @@ import (
19 var onceReadServices sync.Once
20
21 func readServices() {
22- file, err := open("/etc/services")
23+ file, err := open("@iana@/etc/services")
24 if err != nil {
25 return
26 }