diff --git a/manifests/db/sync.pp b/manifests/db/sync.pp
index 58644243..40552e23 100644
--- a/manifests/db/sync.pp
+++ b/manifests/db/sync.pp
@@ -1,7 +1,17 @@
 #
 # Class to execute cinder dbsync
 #
-class cinder::db::sync {
+# == Parameters
+#
+# [*extra_params*]
+#   (optional) String of extra command line parameters to append
+#   to the cinder-manage db sync command. These will be inserted
+#   in the command line between 'cinder-manage' and 'db sync'.
+#   Defaults to undef
+#
+class cinder::db::sync(
+  $extra_params = undef,
+) {
 
   include ::cinder::params
 
@@ -12,7 +22,7 @@ class cinder::db::sync {
   Cinder_config <| title == 'database/connection' |> ~> Exec['cinder-manage db_sync']
 
   exec { 'cinder-manage db_sync':
-    command     => $::cinder::params::db_sync_command,
+    command     => "cinder-manage ${extra_params} db sync",
     path        => '/usr/bin',
     user        => 'cinder',
     refreshonly => true,
diff --git a/spec/classes/cinder_db_sync_spec.rb b/spec/classes/cinder_db_sync_spec.rb
index 98761d4a..238b0980 100644
--- a/spec/classes/cinder_db_sync_spec.rb
+++ b/spec/classes/cinder_db_sync_spec.rb
@@ -6,7 +6,7 @@ describe 'cinder::db::sync' do
 
     it 'runs cinder-manage db_sync' do
       is_expected.to contain_exec('cinder-manage db_sync').with(
-        :command     => 'cinder-manage db sync',
+        :command     => 'cinder-manage  db sync',
         :user        => 'cinder',
         :path        => '/usr/bin',
         :refreshonly => 'true',
@@ -14,8 +14,27 @@ describe 'cinder::db::sync' do
       )
     end
 
+  describe "overriding extra_params" do
+    let :params do
+      {
+        :extra_params => '--config-file /etc/cinder/cinder.conf',
+      }
+    end
+
+    it {
+      is_expected.to contain_exec('cinder-manage db_sync').with(
+        :command     => 'cinder-manage --config-file /etc/cinder/cinder.conf db sync',
+        :user        => 'cinder',
+        :path        => '/usr/bin',
+        :refreshonly => 'true',
+        :logoutput   => 'on_failure'
+      )
+      }
+    end
+
   end
 
+
   context 'on a RedHat osfamily' do
     let :facts do
       {