diff --git a/pandora/item/models.py b/pandora/item/models.py
index fc75f337..66b2fc92 100644
--- a/pandora/item/models.py
+++ b/pandora/item/models.py
@@ -361,7 +361,7 @@ class Item(models.Model):
         else:
             self.poster_height = 128
             self.poster_width = 80
-        if not settings.USE_IMDB:
+        if not settings.USE_IMDB and self.sort:
             if self.poster_frame == -1 and self.sort.duration:
                 self.poster_frame = self.sort.duration/2
                 update_poster = True