diff --git a/manifests/params.pp b/manifests/params.pp
index f2ce6c92b..b7070ea14 100644
--- a/manifests/params.pp
+++ b/manifests/params.pp
@@ -10,6 +10,7 @@
       $service_name      = 'collectd'
       $config_file       = "${collectd_dir}/collectd.conf"
       $root_group        = 'root'
+      $java_dir          = '/usr/share/collectd/java'
     }
     'Solaris': {
       $package           = 'CSWcollectd'
@@ -19,6 +20,7 @@
       $service_name      = 'collectd'
       $config_file       = "${collectd_dir}/collectd.conf"
       $root_group        = 'root'
+      # FIXME: $java_dir
     }
     'Redhat': {
       $package           = 'collectd'
@@ -28,6 +30,7 @@
       $service_name      = 'collectd'
       $config_file       = '/etc/collectd.conf'
       $root_group        = 'root'
+      $java_dir          = '/usr/share/collectd/java'
     }
     'Suse': {
       $package           = 'collectd'
@@ -37,6 +40,7 @@
       $service_name      = 'collectd'
       $config_file       = '/etc/collectd.conf'
       $root_group        = 'root'
+      # FIXME: $java_dir
     }
     'FreeBSD': {
       $package           = 'collectd5'
@@ -46,6 +50,7 @@
       $service_name      = 'collectd'
       $config_file       = '/usr/local/etc/collectd.conf'
       $root_group        = 'wheel'
+      # FIXME: $java_dir
     }
     'Archlinux': {
       $package           = 'collectd'
@@ -55,6 +60,7 @@
       $service_name      = 'collectd'
       $config_file       = '/etc/collectd.conf'
       $root_group        = 'wheel'
+      # FIXME: $java_dir
     }
     'Gentoo': {
       $package           = 'app-admin/collectd'
@@ -64,6 +70,7 @@
       $service_name      = 'collectd'
       $config_file       = '/etc/collectd.conf'
       $root_group        = 'collectd'
+      # FIXME: $java_dir
     }
 
     default: {
diff --git a/manifests/plugin/genericjmx.pp b/manifests/plugin/genericjmx.pp
index 1cc2081d8..eb5df8c33 100644
--- a/manifests/plugin/genericjmx.pp
+++ b/manifests/plugin/genericjmx.pp
@@ -6,7 +6,7 @@
   include collectd
   include collectd::params
   include collectd::plugin::java
-
+  $class_path = "${collectd::params::java_dir}/collectd-api.jar:${collectd::params::java_dir}/generic-jmx.jar"
   $config_file = "${collectd::params::plugin_conf_dir}/15-genericjmx.conf"
 
   concat { $config_file:
diff --git a/spec/classes/collectd_plugin_genericjmx_spec.rb b/spec/classes/collectd_plugin_genericjmx_spec.rb
index adc8cee2a..5dc0a84e9 100644
--- a/spec/classes/collectd_plugin_genericjmx_spec.rb
+++ b/spec/classes/collectd_plugin_genericjmx_spec.rb
@@ -2,11 +2,11 @@
 
 describe 'collectd::plugin::genericjmx', :type => :class do
   let (:facts) {{
-    :osfamily       => 'RedHat',
+    :osfamily       => 'Debian',
     :concat_basedir => tmpfilename('collectd-genericjmx'),
   }}
 
-  let (:config_filename) { '/etc/collectd.d/15-genericjmx.conf' }
+  let (:config_filename) { '/etc/collectd/conf.d/15-genericjmx.conf' }
 
   context ':ensure => present, defaults' do
     it 'will include the java plugin' do
@@ -64,15 +64,15 @@
     it 'should have one jvmarg parameter' do
       should contain_concat__fragment('collectd_plugin_genericjmx_conf_header').with_content(/JVMArg "bat"/)
     end
-    it 'should have ONLY one jvmarg parameter' do
-      should contain_concat__fragment('collectd_plugin_genericjmx_conf_header').without_content(/(.*JVMArg.*){2,}/m)
+    it 'should have ONLY one jvmarg parameter other than classpath' do
+      should contain_concat__fragment('collectd_plugin_genericjmx_conf_header').without_content(/(.*JVMArg.*){3,}/m)
     end
   end
 
   context 'jvmarg parameter empty' do
     let (:params) {{ :jvmarg => [] }}
-    it 'should not have any jvmarg parameters' do
-      should contain_concat__fragment('collectd_plugin_genericjmx_conf_header').without_content(/JVMArg/)
+    it 'should wnot have any jvmarg parameters other than classpath' do
+      should contain_concat__fragment('collectd_plugin_genericjmx_conf_header').without_content(/(.*JVMArg.*){2,}/m)
     end
   end
 end
diff --git a/templates/plugin/genericjmx.conf.header.erb b/templates/plugin/genericjmx.conf.header.erb
index 26e52d30e..1a8ec7fc9 100644
--- a/templates/plugin/genericjmx.conf.header.erb
+++ b/templates/plugin/genericjmx.conf.header.erb
@@ -1,4 +1,5 @@
 <Plugin "java">
+  JVMArg "-Djava.class.path=<%= @class_path %>"
 <% Array(@jvmarg).each do |jvmarg| -%>
   JVMArg "<%= jvmarg %>"
 <% end -%>