diff --git a/README.md b/README.md
index 047bf31..e8370eb 100644
--- a/README.md
+++ b/README.md
@@ -51,7 +51,7 @@ curl -sSfL https://raw.githubusercontent.com/rpgeeganage/lazy-tool/main/install.
 Override the install directory (default `./bin`):
 
 ```bash
-INSTALL_DIR=/usr/local/bin curl -sSfL https://raw.githubusercontent.com/rpgeeganage/lazy-tool/main/install.sh | sh
+curl -sSfL https://raw.githubusercontent.com/rpgeeganage/lazy-tool/main/install.sh | INSTALL_DIR=/usr/local/bin sh
 ```
 
 ### Go install
diff --git a/install.sh b/install.sh
index 1e233fe..d1e93ae 100755
--- a/install.sh
+++ b/install.sh
@@ -4,7 +4,7 @@ set -eu
 # lazy-tool installer
 # Usage:
 #   curl -sSfL https://raw.githubusercontent.com/rpgeeganage/lazy-tool/main/install.sh | sh
-#   INSTALL_DIR=/usr/local/bin curl -sSfL ... | sh
+#   curl -sSfL ... | INSTALL_DIR=/usr/local/bin sh
 
 REPO="rpgeeganage/lazy-tool"
 INSTALL_DIR="${INSTALL_DIR:-./bin}"