diff --git a/packstack/plugins/prescript_000.py b/packstack/plugins/prescript_000.py
index 23a584a76..b250d3e10 100644
--- a/packstack/plugins/prescript_000.py
+++ b/packstack/plugins/prescript_000.py
@@ -99,7 +99,7 @@ def initConfig(controllerObject):
                    "CONDITION"       : False },
                   {"CMD_OPTION"      : "ntp-severs",
                    "USAGE"           : "Comma separated list of NTP servers. Leave plain if Packstack should not install ntpd on instances.",
-                   "PROMPT"          : "Enter list of NTP server(s). Leave plain if Packstack should not install ntpd on instances.",
+                   "PROMPT"          : "Enter a comma separated list of NTP server(s). Leave plain if Packstack should not install ntpd on instances.",
                    "OPTION_LIST"     : [],
                    "DEFAULT_VALUE"   : '',
                    "MASK_INPUT"      : False,