diff --git a/lib/generators/html5/assets/assets_generator.rb b/lib/generators/html5/assets/assets_generator.rb
index 273985b..1c4052b 100644
--- a/lib/generators/html5/assets/assets_generator.rb
+++ b/lib/generators/html5/assets/assets_generator.rb
@@ -45,9 +45,9 @@ def generate_stylesheet_partials
         end
       end
 
-      # TODO
-      # def add_precompiles
-      # end
+      def add_precompiles
+        gsub_file "config/environments/production.rb", "# config.assets.precompile += %w( search.js )", "config.assets.precompile += %w( polyfills.js )"
+      end
 
     protected
 
@@ -60,4 +60,4 @@ def stylesheet_partials
       end
     end
   end
-end
\ No newline at end of file
+end