diff --git a/tailbone/forms/renderers/batch.py b/tailbone/forms/renderers/batch.py
index f2be63ed..3c5df44c 100644
--- a/tailbone/forms/renderers/batch.py
+++ b/tailbone/forms/renderers/batch.py
@@ -31,6 +31,8 @@ import stat
 import random
 
 from formalchemy.ext import fsblob
+from formalchemy.fields import FileFieldRenderer as Base
+from formalchemy.helpers import hidden_field
 
 
 class FileFieldRenderer(fsblob.FileFieldRenderer):
@@ -62,3 +64,6 @@ class FileFieldRenderer(fsblob.FileFieldRenderer):
     def get_url(self, filename):
         batch = self.field.parent.model
         return self.view.request.route_url('{0}.download'.format(self.view.route_prefix), uuid=batch.uuid)
+
+    def render(self, **kwargs):
+        return Base.render(self, **kwargs)