diff --git a/manifests/wsgi/apache.pp b/manifests/wsgi/apache.pp
index 3b497ff7..441d7bb8 100644
--- a/manifests/wsgi/apache.pp
+++ b/manifests/wsgi/apache.pp
@@ -115,30 +115,36 @@
 #   (optional) The source of the WSGI script.
 #   Defaults to undef
 #
+# [*vhost_custom_fragment*]
+#   (optional) Passes a string of custom configuration
+#   directives to be placed at the end of the vhost configuration.
+#   Defaults to undef.
+#
 define openstacklib::wsgi::apache (
-  $service_name        = $name,
-  $bind_host           = undef,
-  $bind_port           = undef,
-  $group               = undef,
-  $path                = '/',
-  $priority            = '10',
-  $servername          = $::fqdn,
-  $ssl                 = false,
-  $ssl_ca              = undef,
-  $ssl_cert            = undef,
-  $ssl_certs_dir       = undef,
-  $ssl_chain           = undef,
-  $ssl_crl             = undef,
-  $ssl_crl_path        = undef,
-  $ssl_key             = undef,
-  $threads             = $::processorcount,
-  $user                = undef,
-  $workers             = 1,
-  $wsgi_daemon_process = $name,
-  $wsgi_process_group  = $name,
-  $wsgi_script_dir     = undef,
-  $wsgi_script_file    = undef,
-  $wsgi_script_source  = undef,
+  $service_name          = $name,
+  $bind_host             = undef,
+  $bind_port             = undef,
+  $group                 = undef,
+  $path                  = '/',
+  $priority              = '10',
+  $servername            = $::fqdn,
+  $ssl                   = false,
+  $ssl_ca                = undef,
+  $ssl_cert              = undef,
+  $ssl_certs_dir         = undef,
+  $ssl_chain             = undef,
+  $ssl_crl               = undef,
+  $ssl_crl_path          = undef,
+  $ssl_key               = undef,
+  $threads               = $::processorcount,
+  $user                  = undef,
+  $workers               = 1,
+  $wsgi_daemon_process   = $name,
+  $wsgi_process_group    = $name,
+  $wsgi_script_dir       = undef,
+  $wsgi_script_file      = undef,
+  $wsgi_script_source    = undef,
+  $vhost_custom_fragment = undef,
 ) {
 
   include ::apache
@@ -198,6 +204,7 @@ define openstacklib::wsgi::apache (
     wsgi_daemon_process_options => $wsgi_daemon_process_options,
     wsgi_process_group          => $wsgi_process_group,
     wsgi_script_aliases         => $wsgi_script_aliases,
+    custom_fragment             => $vhost_custom_fragment,
     require                     => File[$service_name],
   }
 
diff --git a/spec/defines/openstacklib_wsgi_apache_spec.rb b/spec/defines/openstacklib_wsgi_apache_spec.rb
index 15bd3f0b..9863b01b 100644
--- a/spec/defines/openstacklib_wsgi_apache_spec.rb
+++ b/spec/defines/openstacklib_wsgi_apache_spec.rb
@@ -86,6 +86,43 @@ describe 'openstacklib::wsgi::apache' do
       it { is_expected.to contain_file("#{platform_parameters[:httpd_ports_file]}") }
     end
 
+    describe 'when overriding parameters' do
+      let :params do
+        {
+          :wsgi_script_dir       => '/var/www/cgi-bin/keystone',
+          :wsgi_script_file      => 'main',
+          :wsgi_script_source    => '/usr/share/keystone/keystone.wsgi',
+          :servername            => 'dummy.host',
+          :bind_host             => '10.42.51.1',
+          :bind_port             => 4142,
+          :user                  => 'keystone',
+          :group                 => 'keystone',
+          :ssl                   => false,
+          :workers               => 37,
+          :vhost_custom_fragment => 'LimitRequestFieldSize 81900'
+        }
+      end
+      it { is_expected.to contain_apache__vhost('keystone_wsgi').with(
+        'servername'                  => 'dummy.host',
+        'ip'                          => '10.42.51.1',
+        'port'                        => '4142',
+        'docroot'                     => "/var/www/cgi-bin/keystone",
+        'ssl'                         => 'false',
+        'wsgi_daemon_process'         => 'keystone_wsgi',
+        'wsgi_daemon_process_options' => {
+            'user'      => 'keystone',
+            'group'     => 'keystone',
+            'processes' => '37',
+            'threads'   => '42',
+        },
+        'wsgi_process_group'          => 'keystone_wsgi',
+        'wsgi_script_aliases'         => { '/' => "/var/www/cgi-bin/keystone/main" },
+        'require'                     => 'File[keystone_wsgi]',
+        'custom_fragment'             => 'LimitRequestFieldSize 81900',
+      )}
+
+    end
+
   end
 
   context 'on RedHat platforms' do