diff --git a/tests/test_batch.py b/tests/test_batch.py
index 0d5edd6..faeff5a 100644
--- a/tests/test_batch.py
+++ b/tests/test_batch.py
@@ -65,7 +65,7 @@ class BatchApplyTest(TestBase):
         t = Table(
             'tname', m,
             Column('id', Integer, primary_key=True),
-            Column('parent_id', ForeignKey('tname.id')),
+            Column('parent_id', Integer, ForeignKey('tname.id')),
             Column('data', String)
         )
         return ApplyBatchImpl(t, table_args, table_kwargs)