diff --git a/lib/musicbrainzngs/musicbrainz.py b/lib/musicbrainzngs/musicbrainz.py
index 57450270..c765dcf5 100644
--- a/lib/musicbrainzngs/musicbrainz.py
+++ b/lib/musicbrainzngs/musicbrainz.py
@@ -100,6 +100,7 @@ VALID_RELEASE_TYPES = [
     "album", "single", "ep", "broadcast", "other", # primary types
     "compilation", "soundtrack", "spokenword", "interview", "audiobook",
     "live", "remix", "dj-mix", "mixtape/street", # secondary types
+    "demo", # headphones
 ]
 #: These can be used to filter whenever releases or release-groups are involved
 VALID_RELEASE_STATUSES = ["official", "promotion", "bootleg", "pseudo-release"]