diff --git a/install_product_id_generator.sh b/install_product_id_generator.sh
index 642be19..84c3d89 100755
--- a/install_product_id_generator.sh
+++ b/install_product_id_generator.sh
@@ -6,7 +6,8 @@ SERVICE_NAME="bash-product-id.service"
 UUID_DIR="/etc/bash_product"
 UUID_FILE="$UUID_DIR/BASH_PRODUCT_ID"
 SYSTEMD_SERVICE_FILE="/etc/systemd/system/$SERVICE_NAME"
-LOCAL_SCRIPT="generate_bash_product_id.sh"
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+LOCAL_SCRIPT="${SCRIPT_DIR}/generate_bash_product_id.sh"
 TARGET_SCRIPT="/usr/local/bin/generate_bash_product_id.sh"
 
 # 必须 root
diff --git a/main b/main
index de111ab..f1f07c3 100755
Binary files a/main and b/main differ