1 files changed, 1 insertions, 1 deletions
diff --git a/lib/net/smtp.rb b/lib/net/smtp.rb
index a84b7ba154..8c50e28dd0 100644
--- a/lib/net/smtp.rb
+++ b/lib/net/smtp.rb
@@ -769,7 +769,7 @@ module Net
       "auth_#{type.to_s.downcase}".intern
     end
 
-    def check_auth_args(user, secret)
+    def check_auth_args(user, secret, authtype = DEFAULT_AUTH_TYPE)
       unless user
         raise ArgumentError, 'SMTP-AUTH requested but missing user name'
       end