diff --git a/manifests/db/sync.pp b/manifests/db/sync.pp
index 4703cf90..931339a4 100644
--- a/manifests/db/sync.pp
+++ b/manifests/db/sync.pp
@@ -1,13 +1,23 @@
 #
 # Class to execute heat dbsync
 #
-class heat::db::sync {
+# ==Parameters
+#
+# [*extra_params*]
+#   (optional) String of extra command line parameters to append
+#   to the heat-manage db_sync command. These will be inserted
+#   in the command line between 'heat-manage' and 'db_sync'.
+#   Defaults to '--config-file /etc/heat/heat.conf'
+#
+class heat::db::sync(
+  $extra_params = '--config-file /etc/heat/heat.conf',
+) {
 
   include ::heat::deps
   include ::heat::params
 
   exec { 'heat-dbsync':
-    command     => $::heat::params::dbsync_command,
+    command     => "heat-manage ${extra_params} db_sync",
     path        => '/usr/bin',
     user        => 'heat',
     refreshonly => true,
diff --git a/manifests/params.pp b/manifests/params.pp
index d8b4830e..3f66c953 100644
--- a/manifests/params.pp
+++ b/manifests/params.pp
@@ -4,9 +4,6 @@
 #
 class heat::params {
 
-  $dbsync_command =
-    'heat-manage --config-file /etc/heat/heat.conf db_sync'
-
   case $::osfamily {
     'RedHat': {
       # package names
diff --git a/spec/classes/heat_db_sync_spec.rb b/spec/classes/heat_db_sync_spec.rb
index e88da806..31314935 100644
--- a/spec/classes/heat_db_sync_spec.rb
+++ b/spec/classes/heat_db_sync_spec.rb
@@ -14,8 +14,27 @@ describe 'heat::db::sync' do
       )
     end
 
+    describe 'overriding extra_params' do
+      let :params do
+        {
+          :extra_params => '--config-file /etc/heat/heat01.conf',
+        }
+      end
+
+      it {
+        is_expected.to contain_exec('heat-dbsync').with(
+          :command     => 'heat-manage --config-file /etc/heat/heat01.conf db_sync',
+          :path        => '/usr/bin',
+          :user        => 'heat',
+          :refreshonly => 'true',
+          :logoutput   => 'on_failure'
+        )
+        }
+      end
+
   end
 
+
   context 'on a RedHat osfamily' do
     let :facts do
       {