diff --git a/quantum/db/migration/alembic_migrations/env.py b/quantum/db/migration/alembic_migrations/env.py
index 32904977994..ba1f9abdd45 100644
--- a/quantum/db/migration/alembic_migrations/env.py
+++ b/quantum/db/migration/alembic_migrations/env.py
@@ -91,7 +91,7 @@ def build_options():
 
 
 def is_db_quota_enabled():
-    return quantum_config.QUOTAS.quota_driver == DATABASE_QUOTA_DRIVER
+    return quantum_config.quotas.quota_driver == DATABASE_QUOTA_DRIVER
 
 
 if context.is_offline_mode():