diff --git a/ceilometer/storage/sqlalchemy/migrate_repo/versions/015_add_alarm_history_table.py b/ceilometer/storage/sqlalchemy/migrate_repo/versions/015_add_alarm_history_table.py
index 28ee1dd91..7223ba070 100644
--- a/ceilometer/storage/sqlalchemy/migrate_repo/versions/015_add_alarm_history_table.py
+++ b/ceilometer/storage/sqlalchemy/migrate_repo/versions/015_add_alarm_history_table.py
@@ -20,10 +20,9 @@ from migrate import ForeignKeyConstraint
 from sqlalchemy import MetaData, Table, Column, Index
 from sqlalchemy import String, DateTime
 
-meta = MetaData()
-
 
 def upgrade(migrate_engine):
+    meta = MetaData()
     meta.bind = migrate_engine
 
     project = Table('project', meta, autoload=True)
@@ -68,6 +67,7 @@ def upgrade(migrate_engine):
 
 
 def downgrade(migrate_engine):
+    meta = MetaData()
     meta.bind = migrate_engine
     alarm_history = Table('alarm_history', meta, autoload=True)
     alarm_history.drop()
diff --git a/ceilometer/storage/sqlalchemy/migrate_repo/versions/016_simpler_alarm.py b/ceilometer/storage/sqlalchemy/migrate_repo/versions/016_simpler_alarm.py
index 703b7fa60..27dfd7f67 100644
--- a/ceilometer/storage/sqlalchemy/migrate_repo/versions/016_simpler_alarm.py
+++ b/ceilometer/storage/sqlalchemy/migrate_repo/versions/016_simpler_alarm.py
@@ -21,10 +21,9 @@ import json
 from sqlalchemy import MetaData, Table, Column, Index
 from sqlalchemy import String, Float, Integer, Text
 
-meta = MetaData()
-
 
 def upgrade(migrate_engine):
+    meta = MetaData()
     meta.bind = migrate_engine
     table = Table('alarm', meta, autoload=True)
 
@@ -65,6 +64,7 @@ def upgrade(migrate_engine):
 
 
 def downgrade(migrate_engine):
+    meta = MetaData()
     meta.bind = migrate_engine
     table = Table('alarm', meta, autoload=True)