diff --git a/neutron/db/migration/alembic_migrations/versions/4ca36cfc898c_nsx_router_mappings.py b/neutron/db/migration/alembic_migrations/versions/4ca36cfc898c_nsx_router_mappings.py
index 89715a2fa59..c9784a89057 100644
--- a/neutron/db/migration/alembic_migrations/versions/4ca36cfc898c_nsx_router_mappings.py
+++ b/neutron/db/migration/alembic_migrations/versions/4ca36cfc898c_nsx_router_mappings.py
@@ -27,7 +27,7 @@ down_revision = '3d3cb89d84ee'
 
 migration_for_plugins = [
     'neutron.plugins.nicira.NeutronPlugin.NvpPluginV2',
-    'neutron.plugins.nicira.NeutronServicePlugin.NvpAdvancedPlugin'
+    'neutron.plugins.nicira.NeutronServicePlugin.NvpAdvancedPlugin',
     'neutron.plugins.vmware.plugin.NsxPlugin',
     'neutron.plugins.vmware.plugin.NsxServicePlugin'
 ]