diff --git a/manifests/params.pp b/manifests/params.pp
index cd82c0b..5dcb33f 100644
--- a/manifests/params.pp
+++ b/manifests/params.pp
@@ -34,6 +34,13 @@ class jenkins::params {
       # Don't use ccache; not available on centos without EPEL and we
       # have wheel caches on fedora.
       $ccache_package = undef
+
+      # Need to install haveged from EPEL on CentOS.
+      if ($::operatingsystem == 'CentOS') {
+        $haveged_install_options = ['--enablerepo', 'epel']
+      } else {
+        $haveged_install_options = []
+      }
     }
     'Debian': {
       # common packages
@@ -66,6 +73,7 @@ class jenkins::params {
         $ruby_package = 'ruby1.9.1'
         $ruby_dev_package = 'ruby1.9.1-dev'
       }
+      $haveged_install_options = []
     }
     default: {
       fail("Unsupported osfamily: ${::osfamily} The 'jenkins' module only supports osfamily Debian or RedHat (slaves only).")
diff --git a/manifests/slave.pp b/manifests/slave.pp
index e289dc4..3c0042b 100644
--- a/manifests/slave.pp
+++ b/manifests/slave.pp
@@ -8,7 +8,6 @@ class jenkins::slave(
   $gerrituser = 'jenkins',
 ) {
 
-  include ::haveged
   include ::pip
   include ::jenkins::params
 
@@ -22,6 +21,10 @@ class jenkins::slave(
     }
   }
 
+  class { '::haveged':
+    haveged_install_options => $::jenkins::params::haveged_install_options,
+  }
+
   anchor { 'jenkins::slave::update-java-alternatives': }
 
   # Packages that all jenkins slaves need