diff --git a/manifests/init.pp b/manifests/init.pp
index b305dbb..6a08359 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -92,6 +92,12 @@
 #     transport://user:pass@host1:port[,hostN:portN]/virtual_host
 #   Defaults to $::os_service_default
 #
+# [*notification_transport_url*]
+#   (optional) A URL representing the messaging driver to use for notifications
+#   and its full configuration. Transport URLs take the form:
+#     transport://user:pass@host1:port[,hostN:portN]/virtual_host
+#   Defaults to $::os_service_default
+#
 # [*rabbit_ha_queues*]
 #   (optional) Use HA queues in RabbitMQ (x-ha-policy: all).
 #   Defaults to $::os_service_default
@@ -218,6 +224,7 @@ class mistral(
   $control_exchange                   = $::os_service_default,
   $rpc_response_timeout               = $::os_service_default,
   $default_transport_url              = $::os_service_default,
+  $notification_transport_url         = $::os_service_default,
   $rabbit_ha_queues                   = $::os_service_default,
   $rabbit_heartbeat_timeout_threshold = $::os_service_default,
   $rabbit_heartbeat_rate              = $::os_service_default,
@@ -295,6 +302,10 @@ deprecated. Please use mistral::default_transport_url instead.")
     rpc_response_timeout => $rpc_response_timeout,
   }
 
+  oslo::messaging::notifications {'mistral_config':
+    transport_url => $notification_transport_url,
+  }
+
   if $rpc_backend in [$::os_service_default, 'rabbit'] {
 
     oslo::messaging::rabbit {'mistral_config':
diff --git a/releasenotes/notes/add-notification-transport-url-5a3e7f6d1630d14b.yaml b/releasenotes/notes/add-notification-transport-url-5a3e7f6d1630d14b.yaml
new file mode 100644
index 0000000..df09cf8
--- /dev/null
+++ b/releasenotes/notes/add-notification-transport-url-5a3e7f6d1630d14b.yaml
@@ -0,0 +1,4 @@
+---
+features:
+  - Add olso.messaging notification transport_url via puppet-olso
+    resource.
diff --git a/spec/classes/mistral_init_spec.rb b/spec/classes/mistral_init_spec.rb
index 8eee9a1..bf2d0f5 100644
--- a/spec/classes/mistral_init_spec.rb
+++ b/spec/classes/mistral_init_spec.rb
@@ -37,6 +37,8 @@ describe 'mistral' do
       is_expected.to contain_mistral_config('DEFAULT/rpc_response_timeout').with(:value => '<SERVICE DEFAULT>')
       is_expected.to contain_mistral_config('DEFAULT/report_interval').with(:value => '<SERVICE DEFAULT>')
       is_expected.to contain_mistral_config('DEFAULT/service_down_time').with(:value => '<SERVICE DEFAULT>')
+      is_expected.to contain_mistral_config('DEFAULT/transport_url').with(:value => '<SERVICE DEFAULT>')
+      is_expected.to contain_mistral_config('oslo_messaging_notifications/transport_url').with(:value => '<SERVICE DEFAULT>')
       is_expected.to contain_mistral_config('oslo_messaging_rabbit/rabbit_password').with(:value => '<SERVICE DEFAULT>', :secret => true)
       is_expected.to contain_mistral_config('oslo_messaging_rabbit/rabbit_host').with(:value => '<SERVICE DEFAULT>')
       is_expected.to contain_mistral_config('oslo_messaging_rabbit/rabbit_port').with(:value => '<SERVICE DEFAULT>')
@@ -106,7 +108,7 @@ describe 'mistral' do
     end
   end
 
-  describe 'with rabbit transport url configured' do
+  describe 'with rabbit default transport url configured' do
     let :params do
       req_params.merge({'default_transport_url' => 'rabbit://user:pass@host:1234/virt' })
     end
@@ -116,6 +118,16 @@ describe 'mistral' do
     end
   end
 
+  describe 'with rabbit notification transport url configured' do
+    let :params do
+      req_params.merge({'notification_transport_url' => 'rabbit://user:pass@host:1234/virt' })
+    end
+
+    it 'should contain transport_url' do
+      is_expected.to contain_mistral_config('oslo_messaging_notifications/transport_url').with(:value => 'rabbit://user:pass@host:1234/virt')
+    end
+  end
+
   describe 'with rabbitmq heartbeats' do
     let :params do
       req_params.merge({'rabbit_heartbeat_timeout_threshold' => '60', 'rabbit_heartbeat_rate' => '10'})