diff --git a/manifests/proxy/ceilometer.pp b/manifests/proxy/ceilometer.pp
index e0006dd1..63cd848c 100644
--- a/manifests/proxy/ceilometer.pp
+++ b/manifests/proxy/ceilometer.pp
@@ -11,10 +11,9 @@
 #   (Required) The password for the user
 #
 # [*default_transport_url*]
-#   (optional) A URL representing the messaging driver to use and its full
+#   (Required) A URL representing the messaging driver to use and its full
 #   configuration. Transport URLs take the form:
 #     transport://user:pass@host1:port[,hostN:portN]/virtual_host
-#   Defaults to $facts['os_service_default']
 #
 # [*driver*]
 #   (Optional) The Drivers(s) to handle sending notifications.
@@ -162,7 +161,7 @@
 #
 class swift::proxy::ceilometer(
   String[1] $password,
-  $default_transport_url              = undef,
+  String[1] $default_transport_url,
   $driver                             = $facts['os_service_default'],
   $topic                              = $facts['os_service_default'],
   $control_exchange                   = $facts['os_service_default'],
diff --git a/spec/classes/swift_proxy_ceilometer_spec.rb b/spec/classes/swift_proxy_ceilometer_spec.rb
index ea8f2309..c9b31f3a 100644
--- a/spec/classes/swift_proxy_ceilometer_spec.rb
+++ b/spec/classes/swift_proxy_ceilometer_spec.rb
@@ -12,17 +12,12 @@ describe 'swift::proxy::ceilometer' do
 
     let :params do
       {
-        :password => 'swiftpassword'
+        :password              => 'swiftpassword',
+        :default_transport_url => 'rabbit://user_1:user_1_passw@1.1.1.1:5673/rabbit',
       }
     end
 
     describe "when using default parameters" do
-      before :each do
-        params.merge!({
-          :default_transport_url => 'rabbit://user_1:user_1_passw@1.1.1.1:5673/rabbit',
-        })
-      end
-
       it { is_expected.to contain_swift_proxy_config('filter:ceilometer/password').with_value('swiftpassword').with_secret(true) }
       it { is_expected.to contain_swift_proxy_config('filter:ceilometer/paste.filter_factory').with_value('ceilometermiddleware.swift:filter_factory') }
       it { is_expected.to contain_swift_proxy_config('filter:ceilometer/url').with_value('rabbit://user_1:user_1_passw@1.1.1.1:5673/rabbit').with_secret(true) }
@@ -49,19 +44,18 @@ describe 'swift::proxy::ceilometer' do
     describe "when overriding default parameters with rabbit driver" do
       before :each do
         params.merge!({
-          :default_transport_url => 'rabbit://user_1:user_1_passw@1.1.1.1:5673/rabbit',
-          :driver                => 'messagingv2',
-          :topic                 => 'notifications',
-          :control_exchange      => 'swift',
-          :nonblocking_notify    => true,
-          :ignore_projects       => ['services', 'admin'],
-          :auth_url              => 'http://127.0.0.1:5000',
-          :auth_type             => 'password',
-          :project_domain_name   => 'Default',
-          :user_domain_name      => 'Default',
-          :project_name          => 'services',
-          :username              => 'swift',
-          :region_name           => 'region2'
+          :driver              => 'messagingv2',
+          :topic               => 'notifications',
+          :control_exchange    => 'swift',
+          :nonblocking_notify  => true,
+          :ignore_projects     => ['services', 'admin'],
+          :auth_url            => 'http://127.0.0.1:5000',
+          :auth_type           => 'password',
+          :project_domain_name => 'Default',
+          :user_domain_name    => 'Default',
+          :project_name        => 'services',
+          :username            => 'swift',
+          :region_name         => 'region2'
         })
       end
 
@@ -83,14 +77,6 @@ describe 'swift::proxy::ceilometer' do
         it { is_expected.to contain_swift_proxy_config('filter:ceilometer/region_name').with_value('region2') }
       end
 
-      context 'with default transport url' do
-        before do
-          params.merge!({ :default_transport_url => 'rabbit://user:pass@host:1234/virt' })
-        end
-
-        it { is_expected.to contain_swift_proxy_config('filter:ceilometer/url').with_value('rabbit://user:pass@host:1234/virt').with_secret(true) }
-      end
-
       it { is_expected.to contain_oslo__messaging__rabbit('swift_ceilometer_config').with(
         :rabbit_ha_queues            => '<SERVICE DEFAULT>',
         :heartbeat_timeout_threshold => '<SERVICE DEFAULT>',
@@ -135,8 +121,7 @@ describe 'swift::proxy::ceilometer' do
     describe 'when system_scope is set' do
       before :each do
         params.merge!({
-          :default_transport_url => 'rabbit://user_1:user_1_passw@1.1.1.1:5673/rabbit',
-          :system_scope          => 'all'
+          :system_scope => 'all'
         })
       end