diff --git a/youtube_dl/extractor/generic.py b/youtube_dl/extractor/generic.py
index a9c064105..c868ff5a6 100644
--- a/youtube_dl/extractor/generic.py
+++ b/youtube_dl/extractor/generic.py
@@ -2344,8 +2344,8 @@ class GenericIE(InfoExtractor):
 
             if default_search in ('auto', 'auto_warning', 'fixup_error'):
                 if re.match(r'^[^\s/]+\.[^\s/]+/', url):
-                    self._downloader.report_warning('The url doesn\'t specify the protocol, trying with http')
-                    return self.url_result('http://' + url)
+                    self._downloader.report_warning('The url doesn\'t specify the protocol, trying with https://')
+                    return self.url_result('https://' + url)
                 elif default_search != 'fixup_error':
                     if default_search == 'auto_warning':
                         if re.match(r'^(?:url|URL)$', url):