diff --git a/files/models.py b/files/models.py
index aad1439..ca26cde 100644
--- a/files/models.py
+++ b/files/models.py
@@ -1,6 +1,6 @@
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
-from core.models import MymeType
+from core.models import MimeType
 from courses.models import Material
 
 """
@@ -17,12 +17,13 @@ def file_path(instance, filename):
 class TopicFile(Material):
 	description = models.TextField(_('Description'), blank=True)
 	file_url = models.FileField(verbose_name = _("File"), upload_to = file_path)
-	file_type = models.ForeignKey(MymeType, verbose_name=_('Type file'), related_name='topic_files')
+	file_type = models.ForeignKey(MimeType, verbose_name=_('Type file'), related_name='topic_files')
 
 
 	class Meta:
 		verbose_name = _("File")
 		verbose_name_plural = _("Files")
+		ordering = ('-id')
 
 	def __str__(self):
 		return self.name
\ No newline at end of file
--
libgit2 0.21.2