1 files changed, 5 insertions, 3 deletions
diff --git a/actionmailbox/lib/action_mailbox/mail_ext/recipients.rb b/actionmailbox/lib/action_mailbox/mail_ext/recipients.rb
index a8ac42d602..1f8a713218 100644
--- a/actionmailbox/lib/action_mailbox/mail_ext/recipients.rb
+++ b/actionmailbox/lib/action_mailbox/mail_ext/recipients.rb
@@ -1,7 +1,9 @@
 # frozen_string_literal: true
 
-class Mail::Message
-  def recipients
-    Array(to) + Array(cc) + Array(bcc) + Array(header[:x_original_to]).map(&:to_s)
+module Mail
+  class Message
+    def recipients
+      Array(to) + Array(cc) + Array(bcc) + Array(header[:x_original_to]).map(&:to_s)
+    end
   end
 end