diff --git a/manifests/params.pp b/manifests/params.pp
index a12ad4a..f8a0116 100644
--- a/manifests/params.pp
+++ b/manifests/params.pp
@@ -21,7 +21,8 @@
 # @param [Boolean] cy_manage_nagios Whether to manage Nagios monitoring for the module.
 # @param [String] cy_procs_allowed Number of allowed processes for the Nagios check.
 # @param [String] cy_target_service Path to the Nagios service configuration file.
-# @param [Array] cy_target_contacts List of Nagios contacts for notifications.
+# @param [Array] cy_target_contacts List of Nagios contacts for notifications. 
+#   must exist in Nagios contacts configuration!
 ###############################################################################
 class confdroid_ntp::params (
 
@@ -41,7 +42,7 @@ class confdroid_ntp::params (
 
 # monitoring
   Boolean $cy_manage_nagios   = false,
-  String $cy_procs_allowed    = '1',
+  String $cy_procs_allowed    = '1:',
   String $cy_target_service   = '/etc/nagios/conf.d/chronyd_service.cfg',
   Array $cy_target_contacts   = ['nagiosadmin'],