diff --git a/karbor/cmd/manage.py b/karbor/cmd/manage.py
index f7df49f8..6d11b3dc 100644
--- a/karbor/cmd/manage.py
+++ b/karbor/cmd/manage.py
@@ -65,7 +65,7 @@ class DbCommands(object):
             sys.exit(1)
         try:
             return db_migration.db_sync(version)
-        except db_exc.DbMigrationError as ex:
+        except db_exc.DBMigrationError as ex:
             print("Error during database migration: %s" % ex)
             sys.exit(1)
 
diff --git a/karbor/tests/unit/test_cmd.py b/karbor/tests/unit/test_cmd.py
index d615cf12..f0042d38 100644
--- a/karbor/tests/unit/test_cmd.py
+++ b/karbor/tests/unit/test_cmd.py
@@ -80,7 +80,7 @@ class TestKarborManageCmd(base.TestCase):
 
     @mock.patch("oslo_db.sqlalchemy.migration.db_sync")
     def test_db_commands_script_not_present(self, db_sync):
-        db_sync.side_effect = db_exc.DbMigrationError
+        db_sync.side_effect = db_exc.DBMigrationError(None)
         db_cmds = karbor_manage.DbCommands()
         exit = self.assertRaises(SystemExit, db_cmds.sync, 101)
         self.assertEqual(1, exit.code)