diff --git a/manifests/agents/lbaas.pp b/manifests/agents/lbaas.pp
index d6ab36cc0..1881a23e4 100644
--- a/manifests/agents/lbaas.pp
+++ b/manifests/agents/lbaas.pp
@@ -64,6 +64,7 @@ class neutron::agents::lbaas (
         ensure_packages([$::neutron::params::haproxy_package])
       }
     }
+    $::os_service_default: {}
     default: {
       fail("Unsupported device_driver ${device_driver}")
     }
diff --git a/releasenotes/notes/option-to-set-device-driver-to-os-service-default-a5820845f828296c.yaml b/releasenotes/notes/option-to-set-device-driver-to-os-service-default-a5820845f828296c.yaml
new file mode 100644
index 000000000..8c6685b5b
--- /dev/null
+++ b/releasenotes/notes/option-to-set-device-driver-to-os-service-default-a5820845f828296c.yaml
@@ -0,0 +1,3 @@
+---
+features:
+  - Optionally users can set device_driver value in lbaas_agent.ini to $::os_service_default
diff --git a/spec/classes/neutron_agents_lbaas_spec.rb b/spec/classes/neutron_agents_lbaas_spec.rb
index 0170b6d11..5f2888cd5 100644
--- a/spec/classes/neutron_agents_lbaas_spec.rb
+++ b/spec/classes/neutron_agents_lbaas_spec.rb
@@ -90,6 +90,15 @@ describe 'neutron::agents::lbaas' do
         is_expected.to contain_neutron_lbaas_agent_config('DEFAULT/ovs_use_veth').with_value(false);
       end
     end
+
+    context 'with device_driver as $::os_service_default' do
+      before :each do
+        params.merge!(:device_driver => '<SERVICE DEFAULT>')
+      end
+      it 'should have devcie_driver set to $::os_service_default' do
+        is_expected.to contain_neutron_lbaas_agent_config('DEFAULT/device_driver').with_value('<SERVICE DEFAULT>');
+      end
+    end
   end
 
   shared_examples_for 'haproxy lbaas_driver' do