diff --git a/mayan/apps/metadata/api.py b/mayan/apps/metadata/api.py
index 397ac35db9..32ac06117d 100644
--- a/mayan/apps/metadata/api.py
+++ b/mayan/apps/metadata/api.py
@@ -1,8 +1,7 @@
 from __future__ import unicode_literals
 
-from urllib import unquote_plus
-
 from django.shortcuts import get_object_or_404
+from django.utils.six.moves.urllib.parse import unquote_plus
 
 from .models import DocumentMetadata, MetadataType