diff --git a/youtube_dl/compat.py b/youtube_dl/compat.py
index bbc499eda..7ef327451 100644
--- a/youtube_dl/compat.py
+++ b/youtube_dl/compat.py
@@ -2895,6 +2895,7 @@ else:
 
 
 __all__ = [
+    'compat_HTMLParseError',
     'compat_HTMLParser',
     'compat_HTTPError',
     'compat_basestring',