diff --git a/conf/manual_hosts.conf.sample b/conf/manual_hosts.conf.sample
index 4077273..974beff 100644
--- a/conf/manual_hosts.conf.sample
+++ b/conf/manual_hosts.conf.sample
@@ -3,4 +3,8 @@
 # 
 # Multiple hosts are possible, give a blank separated list
 #
+# Note: 
+#    for evry hostname given here, a script <hostname>.sh
+#    must exists at directory 'hosts'
+#
 host_scripts="${hosts_base_dir}/localhost.sh"