diff --git a/psacct/manifests/init.pp b/psacct/manifests/init.pp
index 99bcb18..bd85529 100644
--- a/psacct/manifests/init.pp
+++ b/psacct/manifests/init.pp
@@ -3,15 +3,15 @@
 #
 class psacct {
 
-    case $kernel {
-        linux: {
+    case $::kernel {
+        "linux": {
             include psacct::linux
         }
-        openbsd: {
+        "openbsd": {
             include psacct::openbsd
         }
         default: {
-            fail("psacct module not supported in ${kernel}")
+            fail("psacct module not supported in ${::kernel}")
         }
     }
 
@@ -24,8 +24,8 @@ class psacct::linux {
 
     package { "psacct":
         name   => $::operatingsystem ? {
-            ubuntu  => "acct",
-            default => "psacct",
+            "ubuntu" => "acct",
+            default  => "psacct",
         },
         ensure => installed,
     }
@@ -35,7 +35,7 @@ class psacct::linux {
             "ubuntu" => "acct",
             default  => "psacct",
         },
-        ensure    => $operatingsystem ? {
+        ensure    => $::operatingsystem ? {
             "ubuntu" => undef,
             default  => running,
         },
@@ -67,7 +67,7 @@ class psacct::openbsd {
     exec { "accton":
         command     => "accton /var/account/acct",
         path        => "/bin:/usr/bin:/sbin:/usr/sbin",
-        user        => root,
+        user        => "root",
         refreshonly => true,
     }