diff --git a/youtube_dl/extractor/gdcvault.py b/youtube_dl/extractor/gdcvault.py index 5979bfdd2..26ff2ac9b 100644 --- a/youtube_dl/extractor/gdcvault.py +++ b/youtube_dl/extractor/gdcvault.py @@ -10,6 +10,7 @@ from ..compat import ( from ..utils import ( remove_end, determine_ext, + HEADRequest, ) @@ -150,8 +151,8 @@ class GDCVaultIE(InfoExtractor): r'