diff --git a/youtube_dl/extractor/__init__.py b/youtube_dl/extractor/__init__.py
index 1149dc1ec..fb206a742 100644
--- a/youtube_dl/extractor/__init__.py
+++ b/youtube_dl/extractor/__init__.py
@@ -20,6 +20,7 @@ from .brightcove import BrightcoveIE
 from .c56 import C56IE
 from .canalplus import CanalplusIE
 from .canalc2 import Canalc2IE
+from .channel9 import Channel9IE
 from .cinemassacre import CinemassacreIE
 from .clipfish import ClipfishIE
 from .clipsyndicate import ClipsyndicateIE