From 8d7777b7babc371e5d0cd2a991a36272edec8275 Mon Sep 17 00:00:00 2001
From: oech3 <79379754+oech3@users.noreply.github.com>
Date: Sat, 22 Nov 2025 14:49:13 +0900
Subject: [PATCH] README.md: note that separator is needed for PROG_PREFIX

---
 README.md | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 64785e8df..3ed607d42 100644
--- a/README.md
+++ b/README.md
@@ -228,9 +228,11 @@ make UTILS='UTILITY_1 UTILITY_2' install
 To install every program with a prefix (e.g. uu-echo uu-cat):
 
 ```shell
-make PROG_PREFIX=PREFIX_GOES_HERE install
+make PROG_PREFIX=uu- install
 ```
 
+`PROG_PREFIX` requires separator `-`, `_`, or `=`.
+
 To install the multicall binary:
 
 ```shell
@@ -320,7 +322,7 @@ make uninstall
 To uninstall every program with a set prefix:
 
 ```shell
-make PROG_PREFIX=PREFIX_GOES_HERE uninstall
+make PROG_PREFIX=uu- uninstall
 ```
 
 To uninstall the multicall binary: