diff --git a/railties/lib/rails_generator/generators/applications/app/app_generator.rb b/railties/lib/rails_generator/generators/applications/app/app_generator.rb
index d68c425871625..347ce6352caaa 100644
--- a/railties/lib/rails_generator/generators/applications/app/app_generator.rb
+++ b/railties/lib/rails_generator/generators/applications/app/app_generator.rb
@@ -1,5 +1,6 @@
 require 'rbconfig'
 require 'digest/md5' 
+require 'active_support/secure_random'
 
 class AppGenerator < Rails::Generator::Base
   DEFAULT_SHEBANG = File.join(Config::CONFIG['bindir'],