diff --git a/certbot/cli.py b/certbot/cli.py
index 5c4313ea4..2a4dda360 100644
--- a/certbot/cli.py
+++ b/certbot/cli.py
@@ -120,7 +120,7 @@ More detailed help:
 
 
 # These argparse parameters should be removed when detecting defaults.
-ARGPARSE_PARAMS_TO_REMOVE = ("const", "nargs", "type",)
+ARGPARSE_PARAMS_TO_REMOVE = ("const", "type",)
 
 
 # These sets are used when to help detect options set by the user.