diff --git a/oxdata/poster/models.py b/oxdata/poster/models.py
index 9b87a8c..1155ab9 100644
--- a/oxdata/poster/models.py
+++ b/oxdata/poster/models.py
@@ -119,7 +119,7 @@ class PosterCache(models.Model):
                 self.status = "invalid image"
                 self.image.delete()
                 self.save()
-        if not failed:
+        if not self.failed:
             return self.image
 
 def get_poster_urls(m):