diff --git a/manifests/params.pp b/manifests/params.pp
index 4cd38c3..41cb4c1 100644
--- a/manifests/params.pp
+++ b/manifests/params.pp
@@ -40,6 +40,11 @@
 #   database reloads. This is useful when you have multiple clamd instances
 #   running on the same machine. If you have only one clamd instance, this
 #   should be set to 'no'.
+# @param [String] cv_clamd_max_mem maximum memory usage for clamd. 
+# @param [String] cv_clamd_cpu_quota maximum CPU usage for clamd.
+# @param [String] cv_nice_value nice value for clamd. This is a number between
+#   -20 and 19. The lower the number, the higher the priority. The default is 
+#   19, which is the lowest priority.
 ##############################################################################
 class confdroid_clamav::params (
 
@@ -71,6 +76,9 @@ class confdroid_clamav::params (
   Boolean $cv_enable_clamd            = true,
   Boolean $cv_use_excludepaths        = true,
   String $cv_concurrentdatabasereload = 'no',
+  String $cv_clamd_max_mem            = '512M',
+  String $cv_clamd_cpu_quota          = '30%',
+  String $cv_nice_value               = '19'
 
 ) {
   # service
diff --git a/templates/clamd_svc.erb b/templates/clamd_svc.erb
index 1a43320..bcdac27 100644
--- a/templates/clamd_svc.erb
+++ b/templates/clamd_svc.erb
@@ -14,9 +14,9 @@ ExecStart = /usr/sbin/clamd -c /etc/clamd.d/%i.conf
 ExecReload=/bin/kill -USR2 $MAINPID
 Restart = on-failure
 TimeoutStartSec=420
-MemoryLimit=1024M
-CPUQuota=30%
-Nice=19
+MemoryLimit=<%= @cv_clamd_max_mem %>
+CPUQuota=<%= @cv_clamd_cpu_quota %>
+Nice=<%= @cv_nice_value %>
 
 [Install]
 WantedBy = multi-user.target