diff --git a/guides/source/i18n.md b/guides/source/i18n.md
index 2e6efff596..8340d6807f 100644
--- a/guides/source/i18n.md
+++ b/guides/source/i18n.md
@@ -860,7 +860,7 @@ en:
       subject: "Welcome to Rails Guides!"
 ```
 
-To send params to interpolation use the `default_i18n_subject` method on the mailer.
+To send parameters to interpolation use the `default_i18n_subject` method on the mailer.
 
 ```ruby
 # user_mailer.rb