diff --git a/migrations/versions/0259_remove_service_postage.py b/migrations/versions/0259_remove_service_postage.py
index 65e18bf3a..4f2992342 100644
--- a/migrations/versions/0259_remove_service_postage.py
+++ b/migrations/versions/0259_remove_service_postage.py
@@ -56,7 +56,7 @@ def upgrade():
 def downgrade():
     # ### commands auto generated by Alembic - please adjust! ###
     op.add_column('services_history', sa.Column('postage', sa.VARCHAR(length=255), autoincrement=False, nullable=True))
-    op.add_column('services', sa.Column('postage', sa.VARCHAR(length=255), autoincrement=False, nullable=False))
+    op.add_column('services', sa.Column('postage', sa.VARCHAR(length=255), autoincrement=False, nullable=True))
     op.execute("INSERT INTO service_permission_types VALUES ('choose_postage')")
     op.execute("""
         ALTER TABLE templates ADD CONSTRAINT "chk_templates_postage_null"