--- a/gcalcli-3.3.2/gcalcli	2015-09-14 02:26:55.000000000 -0300
+++ a/gcalcli-3.3.2/gcalcli	2016-09-21 00:20:45.817051537 -0300
@@ -190,7 +190,8 @@ 
     from apiclient.errors import HttpError
     from oauth2client.file import Storage
     from oauth2client.client import OAuth2WebServerFlow
-    from oauth2client.tools import run
+    from oauth2client.tools import run_flow
+    from oauth2client.tools import argparser
 except ImportError as e:
     print "ERROR: Missing module - %s" % e.args[0]
     sys.exit(1)
@@ -665,14 +666,15 @@ 
             credentials = storage.get()
 
             if credentials is None or credentials.invalid:
-                credentials = run(
+                args, unknown = argparser.parse_known_args(sys.argv)
+                credentials = run_flow(
                     OAuth2WebServerFlow(
                         client_id=self.client_id,
                         client_secret=self.client_secret,
                         scope=['https://www.googleapis.com/auth/calendar',
                                'https://www.googleapis.com/auth/urlshortener'],
                         user_agent=__program__ + '/' + __version__),
-                    storage)
+                    storage,args)
 
             self.authHttp = credentials.authorize(httplib2.Http())