diff --git a/manifests/profile/base/cinder/volume/dellemc_powermax.pp b/manifests/profile/base/cinder/volume/dellemc_powermax.pp
index 98e455604..614b32796 100644
--- a/manifests/profile/base/cinder/volume/dellemc_powermax.pp
+++ b/manifests/profile/base/cinder/volume/dellemc_powermax.pp
@@ -33,7 +33,7 @@
 #   Defaults to hiera('step')
 #
 class tripleo::profile::base::cinder::volume::dellemc_powermax (
-  $backend_name = hiera('cinder::backend::dellemc_powermax::volume_backend_name', ['tripleo_dellemc_powermx']),
+  $backend_name = hiera('cinder::backend::dellemc_powermax::volume_backend_name', ['tripleo_dellemc_powermax']),
   $multi_config = hiera('cinder::backend::dellemc_powermax::volume_multi_config', {}),
   $step         = Integer(hiera('step')),
 ) {
@@ -51,7 +51,7 @@ class tripleo::profile::base::cinder::volume::dellemc_powermax (
       'CinderPowermaxPortGroups'       => hiera('cinder::backend::dellemc_powermax::powermax_port_groups', undef),
     }
 
-    $backend_name.each |String $backend| {
+    any2array($backend_name).each |String $backend| {
       $backend_config = merge($backend_defaults, pick($multi_config[$backend], {}))
 
       cinder::backend::dellemc_powermax { $backend :
diff --git a/spec/classes/tripleo_profile_base_cinder_powermax_spec.rb b/spec/classes/tripleo_profile_base_cinder_powermax_spec.rb
index 58d448501..3dcfe6c0c 100644
--- a/spec/classes/tripleo_profile_base_cinder_powermax_spec.rb
+++ b/spec/classes/tripleo_profile_base_cinder_powermax_spec.rb
@@ -40,9 +40,8 @@ describe 'tripleo::profile::base::cinder::volume::dellemc_powermax' do
       it 'should trigger complete configuration' do
         is_expected.to contain_cinder__backend__dellemc_powermax('tripleo_dellemc_powermax')
       end
-    end
 
-    context 'with multiple backends' do
+      context 'with multiple backends' do
         let(:params) { {
           :backend_name => ['tripleo_dellemc_powermax_1', 'tripleo_dellemc_powermax_2'],
           :multi_config => { 'tripleo_dellemc_powermax_2' => { 'CinderPowermaxStorageProtocol' => 'FC' }},
@@ -57,7 +56,9 @@ describe 'tripleo::profile::base::cinder::volume::dellemc_powermax' do
           is_expected.to contain_cinder_config('tripleo_dellemc_powermax_2/volume_driver')
              .with_value('cinder.volume.drivers.dell_emc.powermax.fc.PowerMaxFCDriver')
         end
-     end
+      end
+    end
+  end
 
   on_supported_os.each do |os, facts|
     context "on #{os}" do
@@ -69,4 +70,3 @@ describe 'tripleo::profile::base::cinder::volume::dellemc_powermax' do
     end
   end
 end
-end
diff --git a/spec/classes/tripleo_profile_base_cinder_volume_spec.rb b/spec/classes/tripleo_profile_base_cinder_volume_spec.rb
index 220379925..0e7347ba1 100644
--- a/spec/classes/tripleo_profile_base_cinder_volume_spec.rb
+++ b/spec/classes/tripleo_profile_base_cinder_volume_spec.rb
@@ -299,6 +299,7 @@ describe 'tripleo::profile::base::cinder::volume' do
           is_expected.to_not contain_class('tripleo::profile::base::cinder::volume::dellemc_sc')
           is_expected.to_not contain_class('tripleo::profile::base::cinder::volume::dellemc_xtremio')
           is_expected.to_not contain_class('tripleo::profile::base::cinder::volume::dellsc')
+          is_expected.to_not contain_class('tripleo::profile::base::cinder::volume::dellemc_powermax')
           is_expected.to_not contain_class('tripleo::profile::base::cinder::volume::netapp')
           is_expected.to_not contain_class('tripleo::profile::base::cinder::volume::veritas_hyperscale')
           is_expected.to_not contain_class('tripleo::profile::base::cinder::volume::nfs')
@@ -315,15 +316,16 @@ describe 'tripleo::profile::base::cinder::volume' do
       context 'with all tripleo backends' do
         before :each do
           params.merge!({
-            :cinder_enable_nfs_backend        => true,
-            :cinder_enable_rbd_backend        => true,
-            :cinder_enable_iscsi_backend      => true,
-            :cinder_enable_pure_backend       => true,
-            :cinder_enable_dellemc_sc_backend => true,
-            :cinder_enable_dellsc_backend     => true,
-            :cinder_enable_dellemc_xtremio_backend => true,
-            :cinder_enable_netapp_backend     => true,
-            :cinder_enable_vrts_hs_backend    => true,
+            :cinder_enable_nfs_backend              => true,
+            :cinder_enable_rbd_backend              => true,
+            :cinder_enable_iscsi_backend            => true,
+            :cinder_enable_pure_backend             => true,
+            :cinder_enable_dellemc_powermax_backend => true,
+            :cinder_enable_dellemc_sc_backend       => true,
+            :cinder_enable_dellsc_backend           => true,
+            :cinder_enable_dellemc_xtremio_backend  => true,
+            :cinder_enable_netapp_backend           => true,
+            :cinder_enable_vrts_hs_backend          => true,
           })
         end
         it 'should configure all backends' do
@@ -332,6 +334,7 @@ describe 'tripleo::profile::base::cinder::volume' do
           is_expected.to contain_class('tripleo::profile::base::cinder::volume::dellemc_sc')
           is_expected.to contain_class('tripleo::profile::base::cinder::volume::dellemc_xtremio')
           is_expected.to contain_class('tripleo::profile::base::cinder::volume::dellsc')
+          is_expected.to contain_class('tripleo::profile::base::cinder::volume::dellemc_powermax')
           is_expected.to contain_class('tripleo::profile::base::cinder::volume::netapp')
           is_expected.to contain_class('tripleo::profile::base::cinder::volume::veritas_hyperscale')
           is_expected.to contain_class('tripleo::profile::base::cinder::volume::nfs')
@@ -340,8 +343,8 @@ describe 'tripleo::profile::base::cinder::volume' do
           is_expected.to contain_class('tripleo::profile::base::cinder')
           is_expected.to contain_class('cinder::volume')
           is_expected.to contain_class('cinder::backends').with(
-            :enabled_backends => ['tripleo_iscsi', 'tripleo_ceph', 'tripleo_pure', 'tripleo_dellsc', 'tripleo_dellemc_sc', 'tripleo_dellemc_xtremio',
-                                  'tripleo_netapp','tripleo_nfs','Veritas_HyperScale']
+            :enabled_backends => ['tripleo_iscsi', 'tripleo_ceph', 'tripleo_pure', 'tripleo_dellsc', 'tripleo_dellemc_sc','tripleo_dellemc_powermax',
+                                  'tripleo_dellemc_xtremio', 'tripleo_netapp','tripleo_nfs','Veritas_HyperScale']
           )
         end
       end