diff --git a/app/controllers/dev_utilities_controller.rb b/app/controllers/dev_utilities_controller.rb
index c7bae62bd361eac824c1eee8a855980a6979b4a4..0295e4114dbe5ad2f3374ec41e34c9ddf996e69c 100644
--- a/app/controllers/dev_utilities_controller.rb
+++ b/app/controllers/dev_utilities_controller.rb
@@ -53,6 +53,6 @@ def warzombie
     seed_num_hash = {:seed_number => params[:number]}
     file = File.new(Rails.root.join('config','backer_number.yml'),'w')
     file.write(seed_num_hash.to_yaml)
-
+    file.close
   end
 end