diff --git a/youtube_dl/extractor/slideslive.py b/youtube_dl/extractor/slideslive.py
index 1531af5c9..104576033 100644
--- a/youtube_dl/extractor/slideslive.py
+++ b/youtube_dl/extractor/slideslive.py
@@ -2,13 +2,11 @@
 from __future__ import unicode_literals
 
 from .common import InfoExtractor
-from ..utils import (
-    ExtractorError,
-)
+from ..utils import ExtractorError
 
 
 class SlidesLiveIE(InfoExtractor):
-    _VALID_URL = r'https://slideslive\.com/(?P<id>[0-9]+)'
+    _VALID_URL = r'https?://slideslive\.com/(?P<id>[0-9]+)'
     _TESTS = [{
         'url': 'https://slideslive.com/38902413/gcc-ia16-backend',
         'md5': 'b29fcd6c6952d0c79c5079b0e7a07e6f',
@@ -26,11 +24,11 @@ class SlidesLiveIE(InfoExtractor):
     def _real_extract(self, url):
         video_id = self._match_id(url)
         video_data = self._download_json(
-            url, video_id,
-            headers={'Accept': 'application/json'})
+            url, video_id, headers={'Accept': 'application/json'})
         service_name = video_data['video_service_name']
         if service_name == 'YOUTUBE':
             yt_video_id = video_data['video_service_id']
             return self.url_result(yt_video_id, 'Youtube', video_id=yt_video_id)
         else:
-            raise ExtractorError('Unsupported service name: {0}'.format(service_name), expected=True)
+            raise ExtractorError(
+                'Unsupported service name: {0}'.format(service_name), expected=True)