diff --git a/README.md b/README.md
index a463e55..d3727cb 100644
--- a/README.md
+++ b/README.md
@@ -86,7 +86,7 @@ The host file that contains addresses of connected workers can be created with:
 # scp hello wrold to all clients. sudo -u mpi for auto scp connect. see /home/mpi/.ssh 
 while read -r line; 
  do 
-   sudo -u mpi scp /home/ubuntu/mpi_hello_world ubuntu@$line:/home/ubuntu/mpi_hello_world
+   scp /home/ubuntu/mpi_hello_world ubuntu@$line:/home/ubuntu/mpi_hello_world
 done < /home/ubuntu/hosts
 ```
 ---