diff --git a/playlist/views.py b/playlist/views.py
index 422dfc0..9d3ee49 100644
--- a/playlist/views.py
+++ b/playlist/views.py
@@ -161,6 +161,8 @@ class OverView(LoginRequiredMixin, View):
                 if not artists.get(artist.name):
                     artists[artist.name] = {}
             for artist in vote.track.album.artists.all():
+                if not artists.get(artist.name):
+                    artists[artist.name] = {}
                 if not artists[artist.name].get(vote.track.album.name):
                     artists[artist.name][vote.track.album.name] = []
                 artists[artist.name][vote.track.album.name] += [vote.track]