diff --git a/actionmailer/lib/action_mailer.rb b/actionmailer/lib/action_mailer.rb
index b4693b192bb8ce6bef9f117f826f097545f6d0e5..0f173ea4e81d9331f02c1bea695795a4ece1be0a 100644
--- a/actionmailer/lib/action_mailer.rb
+++ b/actionmailer/lib/action_mailer.rb
@@ -31,6 +31,8 @@
   end
 end
 
+require 'action_view'
+
 module ActionMailer
   def self.load_all!
     [Base, Part, ::Text::Format, ::Net::SMTP]