diff --git a/railties/lib/rails/generators/app_base.rb b/railties/lib/rails/generators/app_base.rb
index 10ddebdf0d..2f6f760438 100644
--- a/railties/lib/rails/generators/app_base.rb
+++ b/railties/lib/rails/generators/app_base.rb
@@ -198,11 +198,9 @@ module Rails
 
       def rails_gemfile_entry
         if options.dev?
-          [GemfileEntry.path('rails', Rails::Generators::RAILS_DEV_PATH),
-           GemfileEntry.github('rack', 'rack/rack')]
+          [GemfileEntry.path('rails', Rails::Generators::RAILS_DEV_PATH)]
         elsif options.edge?
-          [GemfileEntry.github('rails', 'rails/rails'),
-           GemfileEntry.github('rack', 'rack/rack')]
+          [GemfileEntry.github('rails', 'rails/rails')]
         else
           [GemfileEntry.version('rails',
                             Rails::VERSION::STRING,