diff --git a/script.sh b/script.sh
index 2984c1a20..1491b7150 100644
--- a/script.sh
+++ b/script.sh
@@ -125,5 +125,5 @@ else
   echo "Only 1 or 2 are supported."
   exit 1 # 退出并返回错误码
 fi
-sed -i "s/^remote_port = .*/remote_port = $TARGET_REMOTE_PORT/" "$FRP_CONFIG_FILE"
+sed -i '' "s/REMOTE_PORT/$TARGET_REMOTE_PORT/" "$FRP_CONFIG_FILE"
 sleep 2