diff --git a/lib/producer/core/prompter.rb b/lib/producer/core/prompter.rb
index 11eb17b..e9a212e 100644
--- a/lib/producer/core/prompter.rb
+++ b/lib/producer/core/prompter.rb
@@ -9,8 +9,8 @@ module Producer
       end
 
       def prompt(question, choices)
-        cs = choices.each_with_index.inject('') do |m, (c, i)|
-          m += "#{i}: #{c.last}\n"
+        cs = choices.each_with_index.inject '' do |m, (c, i)|
+          m + "#{i}: #{c.last}\n"
         end
         output.puts "#{question}\n#{cs}Choice:"
         choice = input.gets