diff --git a/youtube_dl/__init__.py b/youtube_dl/__init__.py
index 781033a9a..a924e7a41 100644
--- a/youtube_dl/__init__.py
+++ b/youtube_dl/__init__.py
@@ -327,7 +327,7 @@ def _real_main(argv=None):
         'nocheckcertificate': opts.no_check_certificate,
         'prefer_insecure': opts.prefer_insecure,
         'proxy': opts.proxy,
-        'alternative_proxy': opts.alternative_proxy,
+        'cn_verification_proxy': opts.cn_verification_proxy,
         'socket_timeout': opts.socket_timeout,
         'bidi_workaround': opts.bidi_workaround,
         'debug_printtraffic': opts.debug_printtraffic,