diff --git a/zulip/__init__.py b/zulip/__init__.py
index 20861af..18bd326 100644
--- a/zulip/__init__.py
+++ b/zulip/__init__.py
@@ -105,7 +105,7 @@ def _default_client():
 
 def generate_option_group(parser, prefix=''):
     # type: (optparse.OptionParser, str) ->  optparse.OptionGroup
-    group = optparse.OptionGroup(parser, 'Zulip API configuration') # type: ignore # https://github.com/python/typeshed/pull/1248
+    group = optparse.OptionGroup(parser, 'Zulip API configuration')  # type: ignore # https://github.com/python/typeshed/pull/1248
     group.add_option('--%ssite' % (prefix,),
                      dest="zulip_site",
                      help="Zulip server URI",