diff --git a/neutron_dynamic_routing/db/migration/alembic_migrations/versions/queens/contract/a589fdb5724c_change_size_of_as_number.py b/neutron_dynamic_routing/db/migration/alembic_migrations/versions/queens/contract/a589fdb5724c_change_size_of_as_number.py
index 4f661b4e..ca7f7a4d 100644
--- a/neutron_dynamic_routing/db/migration/alembic_migrations/versions/queens/contract/a589fdb5724c_change_size_of_as_number.py
+++ b/neutron_dynamic_routing/db/migration/alembic_migrations/versions/queens/contract/a589fdb5724c_change_size_of_as_number.py
@@ -26,6 +26,11 @@ down_revision = '4cf8bc3edb66'
 from alembic import op
 import sqlalchemy as sa
 
+from neutron.db import migration
+
+# milestone identifier, used by neutron-db-manage
+neutron_milestone = [migration.QUEENS]
+
 
 def upgrade():
     op.alter_column('bgp_speakers', 'local_as', nullable=False,