diff --git a/cluster_setup/user_setup_node.sh b/cluster_setup/user_setup_node.sh
index 2d833cce482cfda383a482ad47a5edf8d567a664..fb8c0679518fdc141a87396a60d96bd769082930 100755
--- a/cluster_setup/user_setup_node.sh
+++ b/cluster_setup/user_setup_node.sh
@@ -1,5 +1,6 @@
 #!/bin/bash
-## script to create 40 users called userXX with a default password
+## Run this on each compute node
+## script creates 40 users called userXX with a default password
 ## and setup up ssh logins without asking for passwords & host checking
 
 n=40