X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/dfd584e3b136d770bf56569030d10712a8722569..01ba89e7caab3e386df4b1a99a93b98a237a0457:/apps/picture/models.py

diff --git a/apps/picture/models.py b/apps/picture/models.py
index 75ea4c37d..5fc37228f 100644
--- a/apps/picture/models.py
+++ b/apps/picture/models.py
@@ -380,5 +380,5 @@ class Picture(models.Model):
 
     # copied from book.py, figure out
     def related_themes(self):
-        return catalogue.models.Tag.usage_for_queryset(
+        return catalogue.models.Tag.objects.usage_for_queryset(
             self.areas.all(), counts=True).filter(category__in=('theme', 'thing'))