diff --git a/december/20.rb b/december/20.rb
index 3b3b4f9..36cd619 100644
--- a/december/20.rb
+++ b/december/20.rb
@@ -13,11 +13,9 @@
 ]
 
 def string_parser str_arr
-  final_array = []
-  str_arr.each do |raw_string|
+  str_arr.each_with_object([]) do |raw_string, final_array|
     final_array << raw_string.scan(/\d+/).last.to_i
   end
-  final_array
 end
 
 describe "String Parser" do