diff --git a/youtube_dl/extractor/deezer.py b/youtube_dl/extractor/deezer.py
index bf4204459..d0e553f5a 100644
--- a/youtube_dl/extractor/deezer.py
+++ b/youtube_dl/extractor/deezer.py
@@ -130,7 +130,7 @@ def _real_extract(self, url):
                 'age_limit': 16 if s.get('EXPLICIT_LYRICS') == '1' else 0,
                 'formats': formats,
                 'track': s.get('SNG_TITLE'),
-                'track_number': int(s.get('TRACK_NUMBER')),
+                'track_number': int_or_none(s.get('TRACK_NUMBER')),
                 'track_id': s.get('SNG_ID'),
                 'artist': album_uploader,
                 'album': album_title,