Index: django/db/models/fields/__init__.py
===================================================================
--- django/db/models/fields/__init__.py (revision 6781)
+++ django/db/models/fields/__init__.py (working copy)
@@ -812,12 +812,18 @@
 class FilePathField(Field):
     def __init__(self, verbose_name=None, name=None, path='', match=None, recursive=False, **kwargs):
         self.path, self.match, self.recursive = path, match, recursive
-        kwargs['max_length'] = kwargs.get('max_length', 100)
         Field.__init__(self, verbose_name, name, **kwargs)
+
+    def formfield(self, **kwargs):
+        defaults = {
+            'path': self.path,
+            'match': self.match,
+            'recursive': self.recursive,
+            'form_class': forms.FilePathField,
+        }
+        defaults.update(kwargs)
+        return super(FilePathField, self).formfield(**defaults)

-    def get_manipulator_field_objs(self):
-        return [curry(oldforms.FilePathField, path=self.path, match=self.match, recursive=self.recursive)]
-
 class FloatField(Field):
     empty_strings_allowed = False