diff --git a/youtube_dl/extractor/iol.py b/youtube_dl/extractor/iol.py
index a3adc3924..76752e6d1 100644
--- a/youtube_dl/extractor/iol.py
+++ b/youtube_dl/extractor/iol.py
@@ -127,6 +127,8 @@ class IOLIE(InfoExtractor):
                 'no_resume': False
             })
 
+            self._sort_formats(formats)
+
         return {
             'id': video_id,
             'title': title,