diff --git a/puppet/services/time/ntp.yaml b/puppet/services/time/ntp.yaml
index dbef6f9123..930dca41f3 100644
--- a/puppet/services/time/ntp.yaml
+++ b/puppet/services/time/ntp.yaml
@@ -12,7 +12,7 @@ parameters:
     description: Mapping of service endpoint -> protocol. Typically set
                  via parameter_defaults in the resource registry.
     type: json
-  NtpServers:
+  NtpServer:
     default: []
     description: NTP servers
     type: comma_delimited_list
@@ -22,6 +22,6 @@ outputs:
     description: Role ntp using composable services.
     value:
       config_settings:
-        ntp::ntpservers: {get_param: NtpServers}
+        ntp::ntpservers: {get_param: NtpServer}
       step_config: |
-        include ::ntp
\ No newline at end of file
+        include ::ntp