[guides] Fix method name inconsistency in a mailer example

[ci skip]

1 files changed, 1 insertions, 1 deletions

diff --git a/guides/source/upgrading_ruby_on_rails.md b/guides/source/upgrading_ruby_on_rails.md
index 51f79f44f5..7ef51b6dc0 100644
--- a/guides/source/upgrading_ruby_on_rails.md
+++ b/guides/source/upgrading_ruby_on_rails.md
@@ -231,7 +231,7 @@ class Notifier < ActionMailer::Base
   end
 end
 
-mail = Notifier.notify(user, ...) # Notifier#welcome is not yet called at this point
+mail = Notifier.notify(user, ...) # Notifier#notify is not yet called at this point
 mail = mail.deliver_now           # Prints "Called"
 ```