diff --git a/Plan9.md b/Plan9.md
index 28d0d5d4..fc612525 100644
--- a/Plan9.md
+++ b/Plan9.md
@@ -45,8 +45,9 @@ If you're running Plan 9 on Raspberry Pi, you'll require the latest [bcm](https:
 
 CA certificates for `crypto/x509` package needs to be installed at `/sys/lib/tls/ca.pem`. You can download it from `https://curl.haxx.se/ca/cacert.pem` or copy from another system.
 
-For 9front, you may need to configure IPv6 loopback address for standard library tests:
+For 9front, you may need to configure loopback addresses for standard library tests:
 
+    ip/ipconfig -P loopback /dev/null 127.1
     ip/ipconfig -P loopback /dev/null ::1
 
 # Installation