diff --git a/youtube_dl/extractor/bilibili.py b/youtube_dl/extractor/bilibili.py
index 07209e6d3..87afafbae 100644
--- a/youtube_dl/extractor/bilibili.py
+++ b/youtube_dl/extractor/bilibili.py
@@ -74,7 +74,7 @@ class BiliBiliIE(InfoExtractor):
             'skip_download': True,  # Test metadata only
         },
     }, {
-        # Another type of webpage 
+        # Another type of webpage
         'url': 'https://www.bilibili.com/video/av16492411/',
         'info_dict': {
             'id': '16492411',