diff --git a/manifests/mark.pp b/manifests/mark.pp
index d83a02c..dfad6b8 100644
--- a/manifests/mark.pp
+++ b/manifests/mark.pp
@@ -1,24 +1,24 @@
-# defined typeapt::mark
+# @summary Manages apt-mark settings
 #
 # @param setting
 #   auto, manual, hold, unhold
 #   specifies the behavior of apt in case of no more dependencies installed
-#   https://manpages.debian.org/sretch/apt/apt-mark.8.en.html
+#   https://manpages.debian.org/stable/apt/apt-mark.8.en.html
 #
 define apt::mark (
   Enum['auto','manual','hold','unhold'] $setting,
-){
+) {
   case $setting {
     'unhold': {
       $unless_cmd = undef
     }
     default: {
       $unless_cmd = "/usr/bin/apt-mark show${setting} ${title} | /bin/fgrep -qs ${title}"
     }
   }
   exec { "/usr/bin/apt-mark ${setting} ${title}":
     onlyif => "/usr/bin/dpkg -l ${title}",
     unless => $unless_cmd,
   }
 }