Guardfile for Rails with Factory Girl

gistfile1.rb

guard 'rspec', version: 2, cli: File.read('.rspec').each_line.map(&:strip).join(' '), all_after_pass: false, all_on_start: false do
  watch(%r{^spec/.+_spec\.rb$})
  watch(%r{^lib/(.+)\.rb$})     { |m| "spec/lib/#{m[1]}_spec.rb" }
  watch('spec/spec_helper.rb')  { "spec" }

  # Rails example
  watch(%r{^app/(.+)\.rb$})                           { |m| "spec/#{m[1]}_spec.rb" }
  watch(%r{^app/(.*)(\.erb|\.haml|\.slim)$})          { |m| "spec/#{m[1]}#{m[2]}_spec.rb" }
  watch(%r{^app/controllers/(.+)_(controller)\.rb$})  { |m| ["spec/routing/#{m[1]}_routing_spec.rb", "spec/#{m[2]}s/#{m[1]}_#{m[2]}_spec.rb", "spec/acceptance/#{m[1]}_spec.rb"] }
  watch(%r{^spec/support/(.+)\.rb$})                  { "spec" }
  watch('config/routes.rb')                           { "spec/routing" }
  watch('app/controllers/application_controller.rb')  { "spec/controllers" }
  # Capybara request specs
  watch(%r{^app/views/(.+)/.*\.(erb|haml|slim)$})     { |m| "spec/requests/#{m[1]}_spec.rb" }

  begin
    require 'active_support/inflector'
    watch(%r{^spec/factories/(.+)_factory\.rb$})      { |m| ["app/models/#{m[1].singularize}.rb", "spec/models/#{m[1].singularize}_spec.rb"] }
  rescue LoadError
  end
end


guard 'spork', rspec_env: { 'RAILS_ENV' => 'test' } do
  watch('config/application.rb')
  watch('config/environment.rb')
  watch(%r{^config/environments/.+\.rb$})
  watch(%r{^config/initializers/.+\.rb$})
  watch('Gemfile')
  watch('Gemfile.lock')
  watch('spec/spec_helper.rb') { :rspec }
  watch(%r{features/support/}) { :cucumber }
end

I've changed the line
watch(%r{^spec/factories/(.+)_factory\.rb$}) { |m| ["app/models/#{m[1].singularize}.rb", "spec/models/#{m[1].singularize}_spec.rb"] }
to
watch(%r{^spec/factories/(.+)\.rb$}) { |m| ["app/models/#{m[1].singularize}.rb", "spec/models/#{m[1].singularize}_spec.rb"] }