diff --git a/occams_datastore/versions/5eb8bce63d7e_fix_missing_deffered_choice_constraint.py b/occams_datastore/versions/5eb8bce63d7e_fix_missing_deffered_choice_constraint.py
new file mode 100644
index 0000000..ad8a51a
--- /dev/null
+++ b/occams_datastore/versions/5eb8bce63d7e_fix_missing_deffered_choice_constraint.py
@@ -0,0 +1,31 @@
+"""Fix missing deffered choice constraint
+
+Revision ID: 5eb8bce63d7e
+Revises: 66de8d816999
+Create Date: 2016-06-27 15:28:14.350166
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '5eb8bce63d7e'
+down_revision = '66de8d816999'
+branch_labels = None
+
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    op.drop_constraint('uq_choice_order', 'choice')
+    op.create_unique_constraint(
+        'uq_choice_order',
+        'choice',
+        ['attribute_id', 'order'],
+        deferrable=True,
+        initially='DEFERRED'
+    )
+
+
+def downgrade():
+    pass