diff --git a/youtube_dl/extractor/openload.py b/youtube_dl/extractor/openload.py
index 9704f2e9d..456561bcc 100644
--- a/youtube_dl/extractor/openload.py
+++ b/youtube_dl/extractor/openload.py
@@ -122,6 +122,6 @@ def _real_extract(self, url):
             'id': video_id,
             'title': title,
             'ext': ext,
-            'thumbnail': self._og_search_thumbnail(webpage),
+            'thumbnail': self._og_search_thumbnail(webpage, default=None),
             'url': video_url,
         }